WBBSE Solutions For Class 8 School Science Chapter 11 Plant Kingdom and The Environment Around Us Review Questions

Chapter 11 Plant Kingdom And The Environment Around Us Review Questions

Question 1. Playing a vital role in the world health care system, a group of plants is known as “local heritage with global importance.”

1. Flowering
2. Medical
3. Ornamental
4. Cereal

Answer: 1. Medical

Question 2. Plants regulate the

1. Water cycle
2. Carbon cycle
3. Both and are correct
4. None is correct

Answer: 3. Both and are correct

Question 3. Oxygen produced by plants is a byproduct of

1. Chemosynthesis
2. Photosynthesis
3. Solar radiation
4. Transpiration

Answer: 2. Photosynthesis

Question 4. Bamboos belong to the

1. Grass family
2. Shrub family
3. Tree Family
4. Herb family

Answer: 1. Grass family

Question 5. Bamboo grows

1. Very fast
2. Very slow
3. Moderately
4. None of these

Answer: 1. Very fast

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Question 6. Bamboo flowers are observed

1. Frequently
2. Annually
3. Rarely
4. Monthly

Answer: 3. Rarely

Question 7. Bamboo shoots are used as

1. Food
2. Poison
3. Rarely
4. Monthly

Answer: 1. Food

Question 8. Water hyacinth is an aquatic plant native to the

1. Gangetic plains
2. Antarctica
3. Amazon basin
4. Decan plateau

Answer: 3. Amazon basin

Question 9. Water hyacinth reproduces primarily by way of

1. Seeds
2. Runners or stolons
3. Flowers
4. Buds

Answer: 2. Runners or stolons

Question 10. Water hyacinth may

1. Be invasive species
2. Form breeding ground for mosquitoes
3. Block water flow
4. All of these

Answer: 4. All of these

Question 11. Sal tree is large and

1. Subdeciduous
2. Coniferous
3. Non-flowering
4. Evergreen

Answer: 1. Subdeciduous

Question 12. Sal tree is native to the

1. Europe
2. America
3. Indian subcontinent
4. South America

Answer: 3. Indian subcontinent

Question 13. Sundari is a/an

1. Edible plant
2. Mangrove plant
3. Aquatic plant
4. Orchid

Answer: 2. Mangrove plant

Question 14. Sundari plants belong to the genus

1. Mangifera
2. Ficus
3. Heritiera
4. None of these

Answer: 3. Heritiera

Question 15. The pigment curcumin is found in

1. Turmeric
2. Cardamom
3. Ginger
4. Garlic

Answer: 1. Turmeric

Question 16. Herbs are obtained from the leaves of

1. Herbaceous plants
2. Herbivores
3. Sal plants
4. Cactus

Answer: 1. Herbaceous plants

Question 17. Triphala contains plenty of

1. Vitamin a
2. Vitamin b
3. Vitamin d
4. Vitamin c

Answer: 4. Vitamin c

Question 18. Black pepper is native to

1. North Bengal
2. South India
3. Sikkim
4. Jammu & Kashmir

Answer: 2. South India

Question 19. Cinnamon is a spice obtained from the

1. Seeds
2. Inner bark
3. Roots
4. Fruits

Answer: 2. Inner bark

Question 20. Cinnamon bark is widely used as a

1. Spice
2. Food
3. Medicine
4. Pigment

Answer: 1. Spice

Question 21. Turmeric (Curcuma longa) is a plant of the

1. Ginger family
2. Bamboo family
3. Grass family
4. None of these

Answer: 1. Ginger family

Question 22. The chemical substance that is present in clove and has antibacterial properties is
known as

1. Allicin
2. Piperine
3. Eugenol
4. Vinblastine

Answer: 3. Eugenol

Question 23. There are two main types of cardamom

1. Red and green
2. Green and black
3. Black and red
4. Sweet and sour

Answer: 2. Green and black

Question 24. Garam masala is

1. Spice mixture
2. Syrup
3. Food
4. Medicine

Answer: 1.

Question 25. Ginger is indigenous to

1. India
2. Europe
3. Southern china
4. America

Answer: 3. Southern china

Question 26. Garlic is a species in the

1. Onion genus
2. Paddy genus
3. Medicinal genus
4. Grass genus

Answer: 1. Onion genus

Question 27. Garlic flavor is

1. Sweet
2. Pungent
3. Bitter
4. Chilly

Answer: 2. Pungent

Question 28. Garlic contains

1. Allicin
2. Alium
3. Aluminium
4. Piperin

Answer: 1. Allicin

Question 29. The medicine Bashir is prepared from

1. Water hyacinth
2. Aloe vera
3. Turmeric
4. Bamboo

Answer: 4. Bamboo

Question 30. Neem is a tree in the

1. Mahogany family
2. Grass family
3. Plant family
4. Shrub family

Answer: 1. Mahogany family

Question 31. Bael is a species of tree native to

1. Europe
2. South america
3. India
4. Africa

Answer: 3. India

Question 32. Amlaki is the richest natural source of

1. Vitamin a
2. Vitamin c
3. Vitamin d
4. Vitamin b complex

Answer: 2. Vitamin c

Question 33. The three fruits of Triphala are

1. Amlaki, amla and neem
2. Amlaki, bael and haritaki
3. Amlaki, haritaki and bahera
4. Bael, haritaki and neem

Answer: 3. Amlaki, haritaki and Behera

Question 34. Menthol is found from

1. Mint
2. Methanol
3. Methi
4. Mustard

Answer: 1. Mint

Question 35. The anti-pyretic component is present in

1. Nayantara
2. Emblica
3. Emblica
4. Aloe vera

Answer: 4. Aloe vera

 

Chapter 11 Plant Kingdom And The Environment Around Us Fill In The Blanks

Question 1. Everything we indirectly from eat comes directly or indirectly from __________
Answer: Plants

Question 2. __________ is produced by plants, as a by-product of photosynthesis.
Answer: Oxygen

Question 3. __________ is a tribe of flowering perennial evergreen plants in the grass family.
Answer: Bamboo

Question 4. Many __________ only flowers at intervals as long as 65 or 120 years.
Answer: Bamboos

Question 5. Bamboo __________ are a common food in some part of the world.
Answer: Shoots

Question 6. Water hyacinth is often considered a highly problematic __________ plant species.
Answer: Invasive

Question 7. When not controlled, water __________ will cover lakes and ponds entirely.
Answer: Hyacinth

Question 8. Sal is a large sub __________ tree.
Answer: Deciduous

Question 9. Sundri is a medium-sized evergreen tree which __________
Answer: Mangrove

Question 10. __________is found in the forests in India.
Answer: Sundarbans

Question 11. The name __________ is supposed to be derived from the name of the plant, Sundari. A is a dried seed, fruit, root, bark, or vegetable substance primarily used for flavoring, coloring, or preserving food.
Answer: Spice

Question 12. Herbs and spices are obtained from __________.
Answer: Plants

Question 13. Black __________ is a flowering vine cultivated for its fruit.
Answer: Pepper

Question 14. Cinnamon is a __________ obtained from the inner bark of several trees.
Answer: Spice

Question 15. Turmeric is a rhizomatous herbaceous perennial plant of the __________ family.
Answer: Ginger

Question 16. There are two main types of cardamom-green and __________.
Answer: Black

Question 17. Ginger is a flowering plant whose __________ is widely used as a spice or a medicine.
Answer: Rhizome

Question 18. The source of garlic’s distinctive odor is __________
Answer: Allicin

Question 19. __________leaves are dried in India and placed in cupboards to prevent insects from eating the clothes and also while storing rice in tins.
Answer: Neem

Question 20. Beal is also known as __________ apple.
Answer: Stone

Question 21. The nutritional facts of __________ include bi of flavonoids, flavones, polyphenols, and carotenoids.
Answer: Amalaki

Question 22. __________ or Sadabahar is an evergreen subshrub or herbaceous plant.
Answer: Nayantara

Question 23. Pudina leaf, fresh or dried, is the culinary source of __________.
Answer: Mint

Question 24. Mint oil is also used as an environmentally friendly __________ for its ability to kill some common pests.
Answer: Insecticide

Question 25. Aloe vera is a __________ plant species.
Answer: Succulent

Question 26. Aloe vera is used in traditional medicine as a multipurpose __________treatment.
Answer: Skin

 

Chapter 11 Plant Kingdom And The Environment Around Us Identify as True Or False

Question 1. Green plants give off oxygen in the process called photosynthesis.
Answer: True

Question 2. Coal and petroleum are fossil substances of plant origin.
Answer: True

Question 3. Plants directly regulate the Nitrogen cycle.
Answer: False

Question 4. Bamboo is a non-flowering plant.
Answer: False

Question 5. Most bamboo species flower infrequently.
Answer: True

Question 6. Flutes are made of bamboo.
Answer: True

Question 7. Water hyacinth is often considered a highly problematic invasive species.
Answer: True

Question 8. When not controlled, water hyacinths will cover lakes and ponds entirely.
Answer: True

Question 9. Water hyacinth control is very easy.
Answer: False

Question 10. Sal tree is seldom completely leafless.
Answer: False

Question 11. Sundri is one of the most important sources of hardwood timber in India.
Answer: False

Question 12. The name of the plant Sundari is supposed to be derived from the name Sundarbans.
Answer: False

Question 13. A spice is a dried seed, fruit, root, bark, or vegetable substance primarily used for flavoring, coloring or preserving food.
Answer: True

Question 14. Herbs and spices are obtained from industry.
Answer: False

Question 15. Black pepper is a flowering vine cultivated for its
Answer: True

Question 16. Black pepper is native to South Bengal.
Answer: False

Question 17. Black pepper has long been recognized as a sedative.
Answer: False

Question 18. Cinnamon is a spice that is used in both sweet and savory foods.
Answer: True

Question 19. Turmeric is a rhizomatous herbaceous perennial plant.
Answer: True

Question 20. Cardamom is a spice made from the seeds of several plants in the genera Curcuma.
Answer: False

Question 21. Turmeric has antifungal properties.
Answer: False

Question 22. There are three main types of cardamom- green, black, and red.
Answer: False

Question 23. Black cardamom is also known as Nepal cardamom.
Answer: True

Question 24. Ginger produces a hot, fragrant kitchen spice.
Answer: True

Question 25. Garlic is a species of the ginger genus.
Answer: False

Question 26. Neem (Azadirachta indica), is a tree in the mahogany family.
Answer: True

Question 27. Sal oil is used for preparing cosmetics such as soap, shampoo, balms and creams as well as toothpaste.
Answer: False

Question 28. In traditional Indian medicine, dried and fresh fruits of the plant Amlaki are used.
Answer: True

Question 29. Nayantara has long been cultivated for herbal medicine and as an ornamental plant.
Answer: True

Question 30. Dried mint is usually preferred over fresh mint when storage of the mint is not a problem.
Answer: False

Question 31. Ghritakumari is a succulent plant species
Answer: True

 

Chapter 11 Plant Kingdom And The Environment Around Us Match The Columns

 

Answer: A-2, B-1,C-4,D-3

Answer: A-4, B-3,C-1,D-2

Answer: A-1, B-3,C-2,D-4

Answer: A-5, B-2,C-6,D-1,E-3