1. Which of the following is an example of a renewable energy source?

2. Which of the following best describes global warming?

3. Which result of global warming could upset the food chain and put some animals species in danger of extinction?

4. What biome is likely to expand if global temperatures increase?

5. Which of the following can impact the global climate?

6. What greenhouse gas is released into the atmosphere from gasoline burning cars?

7. Where does the energy that keeps the surface of the Earth warm come from?

8. True or False: A reduction in the overall average temperature of the Earth of 5 degrees C could cause an ice age.

9. Which of the following causes of global warming can be affected by human behavior?

10. What determines your 'carbon footprint'?