1. Without the greenhouse effect the global temperature would be ... instead of the present...
- -18oC; +15oC
- -15oC; 18oC
- 160C; 24.5oC
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Other questions in this quiz
2. When the Earth's orbit is circular, ... periods occur
- Cold, glacial
3. The variation in the tilt of the Earth's axis occurs over a ... year time span
4. The greater the angle of the tilt of the Earth's axis, the ... the summers+ the ... the winters are
- Hotter; colder
- Colder; hotter
5. When did the Mount Tambora erupt?