1) What would happen to Earth's temperature if the energy absorbed from the sun (solar radiation) was less than the emitted (thermal) energy leaving the Earth? (2)
2) Why is the tropical climate warmer than the climate at the north and south poles? (2)
3) In the tropics, the absorbed solar energy is greater than the emitted thermal radiation lost to space. The reverse is true at the poles. What stops the tropics getting hotter and hotter and the poles getting colder and colder? (2)
4) What factors influence the circulation of the Earth's atmosphere, thereby producing our weather? (3)
5) What are greenhouse gases? Give three examples (5)
6) What would the theoretical global average temperature be without the greenhouse effect? (2)
7) What effect does an increase in greenhouse gas concentration have on the energy budget of the Earth? (2)
8) Sea ice is highly reflective and causes less solar radiation to be absorbed compared to the darker ocean. Sea ice is likely to become less extensive as temperatures warm. Based on these considerations, will the effects of sea ice enhance warming or warming due to increased greenhouse gases? What is this process termed? (2)
9) List three factors that can cause climate to change. (3)
10) What is the pre-industrial concentration of carbon dioxide in parts per million (ppm)? What (approximately) is the current concentration? (2)
11) Why is the future climate response to increasing greenhouse gas concentrations uncertain? (3)
12) Will clouds enhance or diminish the warming due to future increases in greenhouse gases? (2)
please help
1 answer