6. Which of these woods is NOT a tropical hardwood? A) Teak B) Mahogany C) Rosewood D) Pine

How many layers do the plants have in the rainforests?

18. How many different kinds of plants are found in the Amazon rainforest? A) 4,000 B) 40,000 C) 400 D) 400,000

16. How does cutting down rainforests affect the world’s climate? A) It makes the Earth cooler B) It reduces rainfall C) It increases carbon dioxide and makes the Earth warmer D) It increases oxygen in the air

4. Which continent has the largest area of tropical rainforest?

12. How do local people use the rainforest?

5. Which of the following products come from tropical rainforests? A) Rubber and coffee B) Wheat and barley C) Apples and pears D) Ice and coal

5. Tropical rainforests produce about ______ of the oxygen in the Earth’s atmosphere.

22. What lesson can people learn from the way local rainforest tribes live?

13. Why do local people cause little damage to the rainforest?

8. What kind of trees are found in tropical rainforests? A) Evergreen B) Deciduous C) Dry shrubs D) Pine trees

2. How much rain can tropical rainforests receive each year?

14. What is one reason people destroy tropical rainforests? A) To build schools B) To clear land for farms and factories C) To protect animals D) To plant new trees