Explain why white clothing keeps us cool, whereas black clothing warms us. Which is the better reflector? Which is the better absorber?
What will be an ideal response?
Answer: White clothing reflects all colors of light and absorbs very little of the light. It also reflects infrared radiation. Since the energy of the infrared and light radiation is reflected away, we are not warmed by it. Black clothing absorbs almost all of the radiation that falls on it, infrared as well as light. The energy absorbed by black clothing is felt as heat and warms us. So in general, white clothing is a better reflector and black clothing is a better absorber.
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State the equipartition theorem
What will be an ideal response?
Without the protection of the Earth's magnetic field, most of the atmosphere would by now have
A) been lost into space B) frozen onto the surface C) dissolved in the oceans D) been destroyed by chemical reactions
The break-up of Pangaea had worldwide consequences—how did this impact climate and sea level?
What will be an ideal response?
A person throws three rocks off a cliff of height h at exactly the same speed 
, each time, but throwing rock A almost vertically upward, rock B horizontally, and rock C almost vertically downward (see the diagram below). 
Which rock hits the ground with the greatest speed? (Ignore air friction.) A. Rock A B. Rock B C. Rock C D. Rocks A and C hit with the same speed, faster than B. E. All three rocks hit with the same speed.