Answer: A) Climate
Explanation: Until the mid-20th century the largest impediment to trade between area "1" and area "2" on the map was climate. The Sahara Desert was a major impediment to trade. True, there were Trans-Saharan trade routes for centuries, but there is no denying that the desert was an inconvenience at the very least.
Assuming this is a true or false question this is false. Children in high-pressure environments are more likely to bring guns to school.
For example, A child who excels in h=their classes and they are constantly being pressured by the school and their peers to be the best in the school is more likely to be frustrated and make irrational decisions due to the high pressure and stress.
They wanted to open a new land for american farmers
This was astrolabe; an instrument to predict the position of the stars, that could also be used to predict t one's position. The compass was invented in China.
