World War I and II. These wars caused lots of economic growth and development because there was a pressure to create better inventions. Having better technology could mean the win or lose of a war. :D
Answer:
b. There is insufficient contrast in surface type (land vs. ocean) in the middle latitudes.
Explanation:
The sources of air masses can be produced or at very high latitudes because they can carry big amounts of air from the top of a mountain till the bottom by the differences of pressure and temperatures. This kind of air mass is called continental.
In the other hand, in a low latitude, the air coming from the sea, try to reach higher latitudes, again, by pressure and temperatures differences. These kind of air masses are called maritime.
Hope it was useful.
Answer:
It is possible.
Explanation:
There is still enough air-pressure inside Mark Watney's suit even though it was compromised because of the presence of huge amount of air in the suit of Mark Watney. When he tear his suit in order to move upward to reach his crew member, the suit lost some amount of air but not all the air is lost so we can say that there is still enough air pressure present inside Mark Watney's suit.