1. Which of the following is a greenhouse gas that is released by human activities and speeds up global warming?
Carbon dioxide

2. Which of the following human activities does NOT release carbon dioxide into the atmosphere?
Fishing

3. As global warming continues, the intensity of what type of storm that hits coastlines is predicted to increase?
Hurricane

4. Rising water temperatures is a result of global warming and may eventually increase sea levels due to the dissolving of what?
Glaciers

5. Which of the following is NOT a negative effect of global warming?
Larger fish population

6. What country emits the most carbon dioxide?
United States

7. According to the Political Economy Research Institute, which of the following U.S. Forbes 500 companies is the worst air polluter?
E. I. Du Pont de Nemours & Co.

8. As air pollution continues to be released into the atmosphere, what becomes more depleted, resulting in an increase of ultraviolet radiation on earth?
Ozone-layer

9. What percentage of carbon dioxide that is emitted into the atmosphere is absorbed by the ocean?
50%

10. As carbon dioxide emissions increase, the ocean's ability to absorb carbon dioxide declines, resulting in a more acidic ocean. What species is the most at risk in acidic water?
Coral