<span>The
higher the altitude, the lower the atmospheric pressure. Lower pressure
in turn causes water to evaporate more quickly, and water actually
boils at a lower temperature. The percentage of oxygen in the air at two
miles (3.2 km.) is the same as at sea level (21%). However, the air
pressure is 30% lower at the higher altitude due to the fact that the
atmosphere is less dense--that is, the air molecules are farther apart.
The important effect of this decrease in pressure is this: in a given
volume of air, there are fewer molecules present. This is really just
another way of saying that the pressure is lower. This is called Boyle's
law.</span>
Answer:
3) Bismarck, North Dakota
Explanation:
The city that has a climate characterized by confidentiality is Bismarck, North Dakota. This city is relatively close to the center of the US, thus it is far away from the large bodies of water. It is in the mid-latitudes, so it doesn't have too much of an influence from the Arctic or from the tropics. Bismarck has just about enough rainfall so that it is not semi-arid, though it is on the borderline. The summers tend to be dry and hot, while the winters tend to be very cold and snowy.
There is no skeleton, so no fossil. <span />
