WBBSE Solutions For Class 10 Life Science And Environment Chapter 5 Biodiversity Conservation

Chapter 5 Biodiversity Conservation Summary

WBBSE Class 10 Biodiversity Conservation Overview

Biodiversity And Conservation

• Biodiversity conservation is important to maintain sustainable life. This conservation is of two types. In-situ and Ex-situ conservation.
• Conservation of organisms in their natural habitat is called in-situ conservation. The national park, sanctuary, and biosphere reserve are examples of in-situ conservation.
• Conservation of endangered species other than their natural habitat is called ex-situ conservation, zoo, botanical garden etc. are examples of ex-situ conservation.
• Cryopreservation is a special type of ex-situ conservation. By using liquid nitrogen at -196°C temperature, sperm and egg from animals and pollen, seed, etc. from plants are preserved by this process.

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Chapter 5 Biodiversity Conservation Long Answer Type Questions

Question 1. What is a biosphere reserve? Mention the structure of a biosphere reserve.

Answer:

Biosphere Reserve:

To minimise the conflict between development and conservation, UNESCO has introduced a new concept. According to this concept, a large landmass or coastal area is demarcated into different zones based on their functional importance.

Here, the conservation of endangered species, ecotourism, educational excursion and human inhabitancy can be carried out, side by side without causing any harm to others. This type of area is called a biosphere reserve.

Example-Sundarban in West Bengal and Nilgiri hills in Tamilnadu are two biosphere reserves.

Structure of a biosphere reserve:

1. A biosphere reserve has a central core zone for the conservation of wildlife. In this zone, any type of human intervention is completely prohibited. Here, the animals thrive and reproduce freely.
2. Surrounding, the core area, there is a buffer zone, where ecotourism or educational excursion and research works may be conducted.
3. The third zone is the transition zone situated beyond the buffer zone, where human inhabitancy, storage of logs and other harvested matters and forest security activities are allowed.

Wbbse Class 10 Life Science Solutions

Question 2. Mention the importance of the conservation of biodiversity.

Answer:

Types Of Conservation

Importance of conservation of biodiversity:

The importance of the conservation of biodiversity is mentioned below.

1. Storage of food:

Biodiversity is the storehouse of food for all the living organisms on the earth. To keep the store intact we must conserve the biodiversity.

2. Source of energy:

Green plants absorb CO₂ from the environment and H₂O to synthesise carbohydrates as food. In this reaction, solar energy is trapped in the carbohydrate as chemical energy.

Through the food chain, this energy is distributed among all the members of an ecosystem. Therefore, the conservation of biodiversity is essential for the survival of the living world.

3. Store of the gene pool:

Biodiversity is the store of the gene pool. This genetic diversity is essential for the adaptation and evolution of new species.

4. Source of medicine:

Thousands of plants are there with immense medicinal importance. Scientists have found innumerable plants species, which are directly or indirectly involved in the production of medicines.

5. Source of raw material for industries:

We get various raw materials for different industries from plants and animals. Therefore, biodiversity is important for industries also.

6. Ecological importance:

In an ecosystem, different living organisms remain interconnected through the food web. The organisms include producers, consumers and decomposers. If the existence of any of these levels is in danger the whole ecosystem will break.

Therefore, conservation of biodiversity is important to maintain ecological balance.

Question 3. Explain the methods of conservation of biodiversity.

Answer:

Methods of conservation of biodiversity:

Conservation of biodiversity is done in two ways-

1. In-situ conservation and
2. Ex-situ conservation.

These are explained below.

1. In-situ conservation:

Protecting animals and plants within their natural habitat to facilitate their natural propagation by reducing undesirable human intervention and indiscriminate hunting, poaching and chopping of trees is known as in-situ conservation.

This type of conservation is practised in national parks, sanctuaries, protected forests and biosphere reserves. The characteristic features of these sites are mentioned below.

1. National park:

The largest of the forest areas, those that remain under the direct control of the national government where poaching, hunting, felling of trees or fishing is completely prohibited to ensure safe living and propagation of some endangered and rare organisms are known as national parks.

Ecotourism is allowed up to a certain limit with due permission from the department of Forestry. According to the national report 2013, 102 forests are demarcated as national parks.

Example-Gorumara National Park (West Bengal), Kanha National Park (Madhya Pradesh).

2. Sanctuary:

A vast forest area, under the control of state government, in which human intervention for poaching, hunting, felling of trees or fishing is completely prohibited to ensure safe living and propagation of some endangered and rare organisms, is known as a sanctuary.

Controlled human intervention in a sanctuary may be allowed for the purpose of the protective survey, census and research works only. According to the national report 2013, there are 515 sanctuaries in India.

Example-Chapramari Wildlife Sanctuary (West Bengal), Palamau Wildlife Sanctuary (Jharkhand).

3. Reserve forest:

According to the Indian Forest Act 1917, there are few forests under the management of the forest department under the state government in which entry of the general public is completely restricted, cutting of trees, hunting, grazing of cattle and scientific researchers are allowed to enter with due permission from the state forest department are known as reserve forest.

Example-Sholayar Reserve Forest of Kerala, Hanamsagar Reserve Forest of Karnataka.

4. Biosphere reserve:

To minimise the conflict between development and conservation, UNESCO introduced a new concept, by which a large landmass or coastal area is demarcated into different zones based on their functional importance and in which conservation of endangered species, ecotourism, educational excursion and human inhabitancy is carried out side by side without causing any harm to others. This type of area is called a biosphere reserve.

Example-Sundarban in West Bengal and Nilgiri hills in Tamilnadu are two biosphere reserves.

2. Ex-situ conservation:

To provide extra protection and close monitoring, some animals and plants are protected in artificially built areas away from their natural habitat. This type of conservation is known as ex-situ conservation.

This type of conservation is done in zoo gardens, botanical gardens, cryopreservation centres etc.

1. Zoo:

Various terrestrial and aquatic animals are protected in zoos under the close surveillance of zoologists and veterinary specialists.

Example-Alipore Zoological Garden.

2. Botanical gardens:

Several rare, endangered and vulnerable plant species are reared in botanical gardens under the care of botanists.

Example-Shibpur Botanical Garden.

3. Cryopreservation centres:

Cryopreservation is a laboratory technique by which tissues, embryos, body parts etc. of plants and animals are preserved in liquefied nitrogen at a temperature of -196°C.

Example-Botanical Survey of India, Shibpur.

Importance of Biodiversity Conservation

Chapter 5 Biodiversity Conservation Short Answer Type Questions

Wbbse Class 10 Life Science Solutions

Question 1. Mention two objectives of conservation.
Answer:

Two objectives of conservation are as follows-

1. To render the rare and endangered species of plants and animals a better environment to reproduce at a rapid rate and better survival on the earth.
2. To ensure of controlled and sustainable utilisation of natural resources.

Question 2. What do you mean by conservation of biodiversity?
Answer:

Conservation of biodiversity:

Conservation of biodiversity is the protection and scientific management of the biosphere by human beings. This process provides maximum benefit for the present generation and the recent ecosystem.

It also means that the biosphere develops its potential to meet the needs of future generations and the future ecosystem as well.

Question 3. What is in-situ conservation?
Answer:

In-situ conservation:

Protecting animals and plants within their natural habitat to facilitate their natural propagation is called in-situ conservation. In-situ conservation reduces undesirable human intervention and indiscriminate hunting, poaching of animals and chopping of trees.

Example-Conservation of tigers and rhinos in national parks or biosphere reserves.

Question 4. Mention the advantages of in-situ conservation.
Answer:

The advantages of in-situ conservation are as follows-

1. Conservation in natural habitats is less expensive.
2. In this process, the success rate of reproduction is much higher than in captivity.

Methods Of Biodiversity Conservation

Question 5. Mention the disadvantages of in-situ conservation.
Answer:

The disadvantages of in-situ conservation are as follows-

1. It needs a large forest area or water body.
2. The diseased animals cannot be sorted out for treatment, therefore, certain diseases like anthrax may become epidemics.

Question 6. Mention the important sites for in-situ conservation.
Answer:

The important sites for in-situ conservation:

There are a few natural sites, designated for in-situ conservation. These are-national parks, biosphere reserves, sanctuaries and protected forests.

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Question 7. What are national parks?
Answer:

National parks:

The largest of the forest areas remain under the direct control of the government of India, where poaching, hunting, felling of trees or fishing is completely prohibited to ensure safe living and propagation of some endangered and rare organisms, but ecotourism is allowed up to a certain limit with due permission from the department of forestry, are known as a national park.

Example-Gorumara National Park, (West Bengal), Kanha National Park (Madhya Pradesh).

Question 8. Give two examples of ex-situ conservation.
Answer:

The two examples of ex-situ conservation are

1. Zoo (Alipur Zoo) and
2. Botanical garden (Acharya Jagadish Chandra Bose Indian Botanic Garden).

Question 9. Give examples of a national park and a biosphere reserve situated in West Bengal.
Answer:

An example of a national park, situated in West Bengal is jaldapara national park and a biosphere reserve is Sundarbans biosphere reserve.

Question 10. Mention the characteristic features of a national park.
Answer:

The characteristic features of a national park are as follows-

1. The national park is a vast area, controlled by the central government for the conservation of rare and endangered animals and plants.
2. In a national park, hunting, fishing and felling of trees are completely prohibited.

In-situ vs Ex-situ Conservation Methods

Question 11. Name some animals, which are protected in Corbett National Park in Uttarakhand.
Answer:

A number of rare and endangered animals are protected in Corbett National Park Uttarakhand. These include tiger, elephant, gaur, Indian grey mongoose, pangolin etc.

Question 12. Mention the objectives of establishing a national park.
Answer:

There are few objectives of establishing national parks. These are-

1. Protection of rare and endangered animals.
2. Providing adequate food and breeding ground for the animals.
3. Maintaining a perfectly balanced natural ecosystem.

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Question 13. What is a sanctuary?
Answer:

Sanctuary:

A vast forest area, under the control of state government, in which human intervention, poaching, hunting, felling of trees or fishing is completely prohibited to ensure safe living and propagation of some endangered and rare organisms, is known as a sanctuary.

Controlled human intervention in a sanctuary may be allowed for the purpose of the protective survey, census and research works only.

Example- Chapramari (West Bengal), Palamau (Jharkhand).

Question 14. Mention two characteristic features of a sanctuary.
Answer:

Two characteristic features of a sanctuary are as follows-

1. The management of a sanctuary remains under the state government.
2. Human intervention in a sanctuary is completely prohibited. However, entrance is allowed for scientists only after prior permission from the concerned authority.

Question 15. Mention two importance of sanctuary.
Answer:

Two importance of the sanctuary are-

1. Protection of wildlife against hunters and poachers.
2. Conservation of endangered and rare species in their natural habitat.

Question 16. Tabulate any of the four activities which are prohibited in a sanctuary following the provisions of the Wildlife Act.
Answer:

The four activities, that are prohibited in the sanctuary are-

1. Human intervention in the sanctuary is strictly prohibited.
2. Any human activity which disturbs the wild animals is prohibited.
3. Poaching, hunting, and fishing is strictly prohibited.
4. Felling of trees is completely prohibited.

Question 17. What are reserve forests?
Answer:

Reserve forests:

According to the Indian Forest Act, of 1917, there are several forests under the management of the state government in which entry of the public is completely restricted, only scientists are allowed to enter with due permission from the state forest department. Those forests are known as reserve forests.

Example-Sholayar Reserve Forest of Kerala, Hanamsagar Reserve Forest of Karnataka.

Biodiversity Hotspots Explained

Question 18. Mention two significances of biosphere reserve.
Answer:

Two significance of biosphere reserve are as follows-

1. The species diversity and genetic diversity are preserved in the biosphere reserve.
2. In a biosphere reserve, the qualitative development of human and nature interaction can be achieved.

Question 19. Mention the characteristic features of the reserve forest.
Answer:

The characteristic features of reserve forest are as follows-

1. The management of reserve forests is completely a state government affair.
2. In this forest, the felling of trees, and hunting of animals is not allowed without legal permission.

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Question 20. What is ex-situ conservation?
Answer:

Ex-situ conservation:

To provide extra protection and close monitoring, some animals and plants are protected in artificially built areas away from their natural habitat. This is known as ex-situ conservation.

Example- Conservation of plants in botanical gardens or zoos.

Question 21. Mention the advantages of ex-situ conservation.
Answer:

The advantages of ex-situ conservation are as follows-

1. By this mode of conservation, the organisms are monitored closely, therefore, they can be medically attended as soon as any disease affects them.
2. Due to lack of competition, the organisms get adequate food and the percentage of neonatal death can be reduced greatly.
3. Cryopreserved germ cells or spores may be used to produce these organisms in future if their count goes down very fast.

Question 22. What are the disadvantages of ex-situ tages of ex-site conservation?
Answer:

The disadvantages of ex-situ conservation are as follows-

1. Many animals and plants do not reproduce in captivity. Several plants become weak in the absence of ambient temperature, humidity and soil composition.
2. Ex-situ conservation is expensive and it needs a good infrastructure.

Question 23. Mention the common places of ex-situ conservation.
Answer:

Ex-situ conservation is done in many places. These are

1. Gene bank,
2. Zoo,
3. Aquarium,
4. Arboretum, and
5. Botanical garden etc.

Question 24. Mention two roles of a zoological garden as a place of ex-situ conservation.
Answer:

Role of a zoological garden as a place of ex-situ conservation are as follows-

1. In a zoo, terrestrial and aquatic animals from different places are kept in suitable artificial habitats to increase their population size
2. In this place, possible infrastructural and veterinary support are provided to the animals to help them to reproduce in captivity. If population size increases, few of them are set free in their natural habitat.

Question 25. Give two examples of zoological gardens used for ex-situ conservation.
Answer:

Two examples of zoological gardens used for ex-situ conservation are as follows-

1. Alipur Zoological Garden in West Bengal acts as an ex-situ conservation centre for the Royal Bengal tiger, Asiatic lion, elephant, and crocodiles.
2. The Indira Gandhi Zoological Park, at Visakhapatnam, Andhra Pradesh, protects sloth bears, wild dogs, puma, and jaguars as ex-situ conservation.

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Strategies for Conserving Biodiversity

Question 26. Mention two characteristic features of the botanical garden as a site for ex-situ conservation.
Answer:

The characteristic features of a botanical garden as a site for ex-situ conservation are as follows-

1. Various rare and endangered plants and medicinal herbs are nurtured in botanical gardens for ex-situ conservation.
2. The rare and endangered plants are allowed to propagate under scientific surveillance to increase their number.

Question 27. What is meant by cryopreservation?
Answer:

Cryopreservation:

Cryopreservation is a laboratory technique by which any tissue, embryo, and body parts of animals. and plants are preserved in liquefied nitrogen at a temperature of -196°C.

Question 28. Mention the characteristic features of cryopreservation. Give an example of a cryopreservation centre.
Answer:

Features of cryopreservation:

The characteristic features of cryopreservation are as follows-

1. In this type of preservation, liquefied nitrogen is used to maintain at a temperature of -196°C.
2. In this process, pollen grains, seeds, gametes etc. are preserved.

Example of a cryopreservation centre:

An example of a cryopreservation centre is the Botanical Survey of India, Shibpur, Howrah.

Question 29. Give examples of two botanical gardens in India used for ex-situ conservation.
Answer:

There are several botanical gardens in India Two botanical gardens in India used for ex-situ conservation are-

1. Acharya Jagadish Chandra Bose Indian botanic garden at Shibpur, Howrah and
2. Jawaharlal Nehru Tropical botanical garden and research institute, Trivandrum, Kerala.

Question 30. What is an arboretum?
Answer:

Arboretum:

Arboretum is a method of ex-situ conservation. Here, rare and endangered plants are studied, reared and propagated under scientific surveillance.

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Question 31. What is meant by sacred forest?
Answer:

Sacred forest:

Out of religious belief, native tribes of some regions protect a section of a forest along with its animals and plants and treat this block of the forest as a sacred place. This section of forest is called a sacred forest.

Example-In the Thar desert of Rajasthan, the people of the Bishnoi tribes maintain a sacred forest for generations.

Question 32. What are sacred lakes?
Answer:

Sacred lakes:

Out of religious belief, tribes of a few regions of India protect certain water bodies along with all their inhabitants. These water bodies are called sacred lakes.

Example-Khecheopalri Lake of Sikkim is one of such sacred lakes.

Question 33. Distinguish between In-situ conservation and Ex-situ conservation.
Answer:

Distinguishing features between In-situ and Ex-situ conservation are-

Chapter 5 Biodiversity Conservation MCQs

Question 1. An example of ex-situ conservation is—

1. National park
2. Reserve forest
3. Seed bank
4. Sanctuary

Answer: 3. Seed bank

Question 2. An example of conservation in the natural environment is—

1. National park
2. Zoo
3. Arboretum
4. Seed bank

Answer: 1. National park

Question 3. The management of national parks in India is controlled by—

1. Central government
2. State government
3. Local institutions
4. United Nations

Answer: 1. Central government

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Question 4. The central region of a biosphere reserve is known as—

1. Reserve area
2. Core area
3. Buffer area
4. Transition area

Answer: 2. Core area

Question 5. The division of IUCN, under which wildlife sanctuary is included, is—

1. I
2. II
3. III
4. IV

Answer: 2. II

Question 6. Simipal and Manas are

1. Biosphere reserves
2. Sanctuaries
3. National parks
4. Biodiversity hotspots

Answer: 1. Biosphere reserves

Question 7. Which one of the following is not included under in-situ conservation?

1. Zoo
2. National park
3. Biosphere reserve
4. Sanctuary

Answer: 1. Zoo

Question 8. Kaziranga National Park is especially famous for the conservation of—

1. Deer
2. Elephant
3. One-horned Rhinoceros
4. Lion

Answer: 3. One-horned Rhinoceros

Question 9. The number of mega-biodiversity nations is—

1. 10
2. 13
3. 15
4. 17

Answer: 4. 17

Question 10. Cashmere wool is prepared from the fur of—

1. Sheep
2. Goat
3. Rabbit
4. Cat

Answer: 2. Goat

Question 11. The first national park in India is—

1. Bandipur National Park
2. Corbett National Park
3. Kanha National Park
4. Periyar National Park

Answer: 2. Corbett National Park

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Question 12. The first week of which month is celebrated as wildlife week?

1. January
2. Apri 1
3. July
4. October

Answer: 4. October

Question 13. Which of the following is the most endangered class?

1. Pisces
2. Reptilia
3. Aves
4. Mammalia

Answer: 4. Mammalia

Question 14. The most endangered plants in the world are—

1. Fungi
2. Algae
3. Flowering plants
4. Mosses

Answer: 3. Flowering plants

Question 15. Sperms, ova, seeds, etc. are stored for a prolonged period in liquefied nitrogen at – 196°C. This type of preservation process is known as—

1. Bioconservation
2. Cryopreservation
3. Ex-situ conservation
4. ln-situ conservation

Answer: 2. Cryopreservation

Question 16. A modern concept of conservation prescribed ‘ in the MAB programme of UNESCO is—

1. National park
2. Reserve forest
3. Sanctuary
4. Biosphere reserve

Answer: 4. Biosphere reserve

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Question 17. The region seen In a biosphere reserve

1. Core area
2. Buffer area
3. Transition
4. All of these

Answer: 4. All of these

Question 18. The full form of MAB is—

1. Man and Biology programme
2. Man and Biosphere programme
3. Mammals and Biosphere programme
4. Mammals and Biology programme

Answer: 2. Man and Biosphere programme

Question 19. Conservation of an animal in a national park or wildlife sanctuary is treated as—

1. National park or sanctuary conservation
2. Ex-situ conservation
3. In-situ conservation
4. Keystone conservation

Answer: 3. In-situ conservation

Question 20. The reserved area in West Bengal, where red panda is available, is—

1. Kanha National Park
2. Sajnekhali Wildlife Sanctuary
3. Singalila National Park
4. Jaldapara National Park

Answer: 3. Singalila National Park

Question 21. Poaching of the red panda is done due to its—-

1. Teeth
2. Bones
3. Meat
4. Furry skin

Answer: 4. Furry skin

Life Science Class 10 Wbbse

Question 22. The full form of WWF is—

1. Worldwide Fund for Nature
2. World wide Forum
3. World wide Forest
4. World wide Friction

Answer: 1. Worldwide Fund for Nature

Question 23. An extinct bird of India is—

1. Hornbill
2. Cockatoo
3. Parrot
4. Pink-headed duck

Answer: 4. Pink-headed duck

Question 24. Poaching of rhinoceros is done for its—

1. Meat
2. Teeth
3. Claw
4. Horn

Answer: 4. Horn

Question 25. The state animal of Sikkim is—

1. Fishing cat
2. Red panda
3. Takin
4. Bear

Answer: 2. Red panda

Question 26. Which of the following component is used in cryopreservation—

1. Liquid nitrogen
2. Liquid hydrogen
3. Dry ice
4. Liquid oxygen

Answer: 1. Liquid nitrogen

Question 27. Gene bank is an example of—

1. Ex-situ Conservation
2. In-situ conservation
3. Hot spot
4. None of the above

Answer: 1. Ex-situ Conservation

Question 28. Gorumara national park is located in—

1. Madhyapradesh
2. Uttar Pradesh
3. Kerala
4. West Bengal

Answer: 4. West Bengal

Question 29. Which of the following pair is not right—

1. Gir-Gujrat
2. Kanha Uttarpradesh
3. Corbett-Uttarakhand
4. Kaziranga-Assam

Answer: 2. Kanha Uttarpradesh

Question 30. Simlipal, Sundarban and Manas are—

1. Biosphere reserve
2. Sanctuary
3. National Park
4. Cold spot

Answer: 1. Biosphere reserve

Question 31. Nilgiri biosphere reserve is located in—

1. Karnataka
2. Sikkim
3. Orissa
4. Rajasthan

Answer: 1. Karnataka

Question 32. According to the census of 2015, the number of Royal Bengal tigers present in Indian Sundarban is—

1. 900
2. 2000
3. 86
4. 500

Answer: 3. 86

Question 33. An example of ex-situ conservation is —.

1. Sundarban Tiger reserve
2. Corbett National Park
3. Nilgiri Biosphere reserve
4. Cryopreservation

Answer: 4. Cryopreservation

Question 34. Gorumara, Corbett, Kulik, Nandadevi-Choose the correct sequence from the following which is correct for the above forests sequence—

1. Biosphere Reserve, Sanctuary, National Park, National Park
2. National Park, National Park, Biosphere Reserve, Sanctuary
3. National park, National Park, Sanctuary, Biosphere Reserve
4. Sanctuary, Biosphere Reserve, National Park, Sanctuary

Answer: 3. National park, National park, Sanctuary, Biosphere reserve

Question 35. Identify which of the following is the correct information related to biosphere reserve—

1. Conservation is promoted to local people and other biotic communities along with the conservation of the ecosystem
2. National Park and sanctuary are not included within the biosphere reserve
3. The presence and participation of local people for the conservation of the ecosystem are not permissible
4. Its size is usually smaller than a sanctuary

Answer: 1. Conservation is promoted to local people and other biotic communities along with the conservation of the ecosystem

 

Chapter 5 Biodiversity Conservation Answer In A Single Word Or Sentence

Question 1. Which is the first biosphere reserve in India?
Answer: Nilgiri Biosphere Reserve

Question 2. At present, how many sanctuaries are there in India?
Answer: 515 sanctuaries

Question 3. In which year was Jaldapara Wildlife Sanctuary considered as national park?
Answer: Jaldapara Wildlife Sanctuary was considered as national park in the year 2012.

Question 4. Name two international organisations, which work for the conservation of biodiversity.
Answer: IUCN and WWF are two international organisations which.

Question 5. Write down the full form of NEERI.
Answer: National Environmental Engineering Research Institute.

Role of National Parks in Biodiversity Conservation

Question 6. How many categories are there in the red list of IUCN?
Answer: Nine categories are there in the red list of IUCN.

Question 7. What is the full form of UNDP?
Answer:

The full form of UNDP is United Nations Development Programme.

Question 8. What is the full form of FAO?
Answer:

Full form of UNDP

Food and Agriculture Organisation.

Question 9. What is the full form of NBPGR?
Answer:

Full form of NBPGR

National Bureau of Plant Genetic Resources.

Question 10. According to the list of IUCN, under which category are the Indian national parks included?
Answer: According to the list of IUCN, Indian national parks are included under category II.

Question 11. What is the main function of IUCN?
Answer:

Main function of IUCN

Conservation of biodiversity all over the globe.

Question 12. According to the list of IUCN, under which category are the reserve forests included?
Answer: The reserve forests are included under category IV or VI.

Question 13. In which year the Forest Conservation Act was implemented in India?
Answer: The Forest Conservation Act was implemented in India in 1980.

Question 14. Where is the Valley of Flowers National Park located?
Answer: The Valley of Flowers National Park is located at Uttarakhand.

Question 15. In which country was the Dodo bird found before its extinction?
Answer: Dodo bird was found in Mauritius before its extinction.

Question 16. Name a reserve forest in West Bengal.
Answer: Chapramari

Question 17. Name a sanctuary located in the Birbhum district of West Bengal.
Answer: Ballavpur Wildlife Sanctuary

Question 18. Name the sanctuary located in North 24 Parganas of West Bengal.
Answer: Bibhutibhushan Wildlife Sanctuary

Question 19. In which state of India is Palamau Wildlife Sanctuary situated?
Answer: Jharkhand

Question 20. What is cryoinjury?
Answer:

Cryoinjury

Sometimes the cellular structure is damaged during ice formation in cryopreservation, this is called cryoinjury.

Common Threats to Biodiversity

Question 21. In which temperature cryopreservation is done.
Answer: -196°c

Question 22. Write down the name of a botanical garden.
Answer: Acharya Jagadish Chandra Bose Indian botanical garden or botanic garden.

Question 23. Where does Gir national park is located?
Answer: Gujrat

Question 24. Name one bird sanctuary of West Bengal.
Answer: Chintamani kar bird sanctuary [Narendrapur]

Question 25. Write down the name of a zoo of West Bengal.
Answer: Zoological Garden, Alipore

Question 26. How many biosphere reserves in India come under category V in the IUCN schedule?
Answer: In India, 18 Biosphere reserves come under category V in the IUCN schedule.

Question 27. In which type of in-situ conservation practice, the diversity, culture and lifestyle of human is preserved anlog with microorganisms, wild animals and wild plants?
Answer: Biosphere reserve

Question 28. Which is the largest national park in India?
Answer: The Desert National Park of Jaisalmer in Rajasthan is the largest (3162 km2) national park in India.

Question 29. Which is the smallest national park in India?
Answer: South Button Island National Park in Andaman is the smallest (5 km2) national park in India.

Question 30. Where is the first marine national park in India situated?
Answer: India’s first marine national park is situated at the Gulf of Kachchh in Jamnagar, Gujarat.

Community Involvement in Biodiversity Conservation

Question 31. How many marine national parks are there in India?
Answer: There are five marine national parks in India.

Question 32. On which day is World Environment Day celebrated?
Answer: 5th June

Question 33. Which day is celebrated every year as World Conservation Day?
Answer: 3 December

 

Chapter 5 Biodiversity Conservation Fill In The Blanks

Question 1. Due to the rise in sea level,_________ forest area is declining gradually.
Answer: Mangrove

Question 2. In 1997, UNESCO declared _________ as a World Heritage site.
Answer: Sundarban

Question 3. Conservation on any organism in a biosphere reserve is an example of _________ conservation.
Answer: In-situ

Question 4. Jaldapara National Park is situated in the state of _________.
Answer: West Bengal

Question 5. According to Wildlife Protection Act, _________ any state government can declare an area as a reserve forest.
Answer: 1927

Question 6. A zoological garden is an _________ conservation centre.
Answer: Ex-situ

Question 7. Acharya Jagadish Chandra Bose Indian Botanic Garden is situated in district _________.
Answer: Howrah

Question 8. In the year _________, the first national park was established in India.
Answer: Brazil

Question 9. The largest national park of India is _________.
Answer: Jim Corbett.

Question 10. The biosphere reserve is a _________ conservation.
Answer: 10. In-situ

Question 11. Lloyd’s botanical garden is situated in _________ district of west Bengal.
Answer: Darjeeling

Question 12. The full form of MAB is _________.
Answer: Men and Biosphere programme

Question 13. The bharatpur bird sanctuary is situated in _________ state.
Answer: Rajasthan

Question 14. A national park of West Bengal is _________.
Answer: Jaldapara

Question 15. The ex-situ conservation by keeping sample seeds in liquid nitrogen at a temperature of -196°C is called _________.
Answer: Cry op reservation

Question 16. _________ is a biosphere reserve located in West Bengal.
Answer: Sundarban

 

Chapter 5 Biodiversity Conservation State True Or False

Question 1. Kangaroo is an endangered species of India.
Answer: False

Question 2. The temperature for cryopreservation is -196°C.
Answer: True

Question 3. The central portion of a biosphere reserve is called the buffer region.
Answer: False

Question 4. Acharya Jagadish Chandra Bose Indian Botanic Garden is situated at Shibpur, Howrah.
Answer: True

Question 5. The Sundarban area of West Bengal is a biosphere reserve.
Answer: True

Question 6. Brazil is the country with the richest biodiversity in the world.
Answer: True

Question 7. Chapamari is a national park of West Bengal.
Answer: False

Question 8. The national park is a type of In-situ conservation
Answer: True

Question 9. In Manas national park of Assam Royal Bengal tiger is conserved.
Answer: False

Question 10. One-horned rhinoceros is conserved at Manas National Park of West Bengal.
Answer: False

 

Chapter 5 Biodiversity Conservation Match The Columns

1.

Answer: 1-D; 2-F; 3-E; 4-A; 5-C; 6-G

2.

Answer: 1-D; 2-E; 3-A; 4-C; 5-B; 6-F

 

Chapter 5 Biodiversity Conservation Find The Odd One Out

Question 1. Maharashtra, Kerala, Andhra Pradesh, Karnataka
Answer: Andhra Pradesh

Question 2. The national park, Zoological garden, Biosphere reserve, Sanctuary
Answer: Zoological garden

Question 3. Zoo, Botanical garden, Cryopreservation, Biosphere reserve
Answer: Biosphere

Question 4. The core region, Buffer region, Transition region, Botanical garden
Answer: Botanical garden

Biodiversity Conservation Success Stories

Question 5. Vitrification, Solid, Liquid nitrogen, Zoological garden
Answer: Zoo garden

Question 6. Nilgiri, Nokrek, Manas, Chapramari
Answer: Chapramari

Life Science Class 10 Wbbse

Chapter 5 Biodiversity Conservation Fill In The Blanks By Looking At The First Pair

Question 1. Sundarban: Biosphere reserve:: Jaldapara: _________
Answer: National Park

Question 2. Kaziranga, Assam: National park :: Manas, Assam: _________
Answer: Wildlife sanctuary

Question 3. Zoo: Ex-situ conservation:: Sanctuary: _________
Answer: In-situ conservation

Question 4. Corbett National Park: In-situ conservation:: Indian Botanic Garden: _________
Answer: Ex-situ conservation

Question 5. Plant: Botanical garden:: Seed and gamete _________
Answer: Cryopreservation

Question 6. Kanha: Madhya Pradesh:: Corbett: _________
Answer: Uttarakhand

 

Chapter 5 Biodiversity Conservation Among The Four Concepts Given Three Of Them Belong To One Find That

Question 1. The national park, In-situ conservation, Wildlife sanctuary, Reserve forest.
Answer: In-situ conservation

Question 2. Botanical garden, Cryopreservation, Zoological garden, Ex-situ conservation.
Answer: Ex-situ Conservation

Question 3. Dachigam forest, Kanha forest, National park, Gorumara forest.
Answer: National park

Question 4. Ovum preservation, Sperm preservation, Ovarian tissue preservation, Cryopreservation.
Answer: Cryopreservation.

Question 5. Parmadan forest, Wildlife sanctuary, Bethuadahari forest, Senchal forest.
Answer: Wildlife sanctuary.

Question 6. Core region, Buffer region, Transition region Biosphere reserve
Answer: Biosphere reserve

Question 7. Vitrification, -196°C Germplasm conservation, Cryopreservation.
Answer: Cryopreservation

Question 8. Embryo, Meristematic tissue, Seed, Cryopreservation.
Answer: Cryopreservation