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Unformatted text preview: (c) The force each molecule imparts on the inside of the balloon is proportional to the speed of each is moving, or the temperature. So, because the temperature has decreased, the force is also comparatively smaller after placing the balloon to the freezer. (d) Since the pressure is the same after the balloon is placed in the freezer, the area of the balloon has to decrease proportional to force by the formula: Pressure= Total Force/Area. 3. Because of photosynthesis, huge amount of O 2 was produced. The only source of oxygen in our atmospheres history comes from photosynthesis. Since there was too much O 2 in the atmosphere, ozone (O 3 ) has formed. O and O 2 react to form O 3 to absorb ultraviolet radiation. Since then, life was not required to remain in the oceans and started to colonize dry land....
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- Spring '08