Rainforest Quiz From World Book (Australia & New Zealand)
How much do you know about the world's rainforests? Check with World Book Student, and Kids Rain Forest article for all the answers.
- 1.
What percentage of the Earth's surface is covered by tropical rainforests?
- A.
6 to 7 percent
- B.
8 to 9 percent
- C.
5 to 6 percent
Correct Answer
A. 6 to 7 percentExplanation
Tropical rain forests occupy only 6 to 7 percent of Earth's surface.Rate this question:
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- 2.
Rain forests grow in four major layers. 1) the canopy 2) the sub-canopy 3) the understorey. What is the lowest layer called?
- A.
Bottom layer
- B.
The floor
- C.
The ground
Correct Answer
B. The floorExplanation
Rain forests grow in four major layers—the canopy, or top layer; the sub-canopy, a layer of trees just below the canopy; the understorey, a shady lower area; and the floor.Rate this question:
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- 3.
What are the tallest trees called?
- A.
Emergents
- B.
Crowns
- C.
Buttresses
Correct Answer
A. EmergentsExplanation
The tallest trees, known as emergents, grow more than 50 metres tall.Rate this question:
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- 4.
Where are the world's largest rain forests located?
- A.
Australia and the Pacific Islands
- B.
Americas, Asia, and Africa
- C.
Antarctica
Correct Answer
B. Americas, Asia, and AfricaExplanation
The world's largest rain forests occur in tropical regions of the Americas, Asia, and Africa.Rate this question:
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- 5.
What is the name of the make-believe line around Earth's middle where most rain forests grow?
- A.
Tropic of Capricorn
- B.
Tropic of Cancer
- C.
Equator
Correct Answer
C. EquatorExplanation
Most rain forests grow near the equator, a make-believe line around Earth's middle.Rate this question:
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- 6.
The rain forest is part of which type of system?
- A.
Ecosystem
- B.
Circulatory system
- C.
Solar system
Correct Answer
A. EcosystemExplanation
The rain forest ranks as the most complex ecosystem on land.Rate this question:
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- 7.
How do tropical rain forests limit global warming?
- A.
By absorbing large amounts of carbon dioxide.
- B.
By absorbing large amounts of nitrogen.
- C.
By absorbing large amounts of hydrogen.
Correct Answer
A. By absorbing large amounts of carbon dioxide.Explanation
By absorbing carbon dioxide, tropical rain forests may help keep worldwide temperatures from becoming too warm.Rate this question:
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- 8.
What percentage of the world's plants species are found in the tropical rain forests?
- A.
About 50 percent
- B.
About 40 percent
- C.
About 45 percent
Correct Answer
C. About 45 percentExplanation
About 45 percent of the world's plant species occur in tropical rain forests.Rate this question:
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- 9.
Tropical rain forests are located in which area of Australia?
- A.
Northeast Australia
- B.
Southwest Australia
- C.
Northwest Australia
Correct Answer
A. Northeast AustraliaExplanation
Tropical rain forests cover about 377,000 square kilometres in northeast Australia and on many Pacific Islands.Rate this question:
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- 10.
What is the meaning of deforestation?
- A.
Planting of trees
- B.
Clearing of trees
Correct Answer
B. Clearing of treesExplanation
Scientists estimate that tropical deforestation (clearing of trees) wipes out about 7,500 species per year.Rate this question:
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Mar 16, 2022Quiz Edited by
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Apr 29, 2012Quiz Created by
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