1. Which of the following can cause global warming? * 2 points
A. volcanic eruptions
B. the amount of rainfall
C. the rising of warm air into the atmosphere
D. the absorption of heat from the earth’s interior.
2.When does greenhouse effect happen? * 2 points
A. When the earth surface absorb heat from the atmosphere.
B. When the earth surface absorb heat from the earth’s interior.
C. When the upper atmosphere absorb heat from the outer space.
D. When the lower atmosphere absorb heat from the earth’s surface.
3. Which activity does NOT contribute to global warming? *
A. reforestation
B. illegal fishing
C. mining
D. incineration of garbage
4. What will happen if there is too much carbon dioxide in the atmosphere? * 2 points
A. temperature increase
B. temperature decrease
C. Water vapor condenses
D. Greenhouse effect occurs
5. What causes La Niña? *
A. Warming of water in the Atlantic Ocean.
B. Cooling of water in the Atlantic coast of the US.
C. Warming of water in the Pacific Ocean off the coast of South America. D. Cooling of water in the tropical Pacific Ocean between the Tropic of Cancer and the Tropic of Capricorn​