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.
Answer: Battle of the somme
Explanation:
The appropriate response is a Semantic Memory. It alludes to a segment of long haul memory that procedures thoughts and ideas that are not drawn from individual experience. Semantic memory incorporates things that are regular information, for example, the names of hues, the hints of letters, the capitals of nations and other fundamental realities gained over a lifetime.
Hitler intended to cut the sea lines between the US and Europe by having an armada of ships block the shipping channels. I hope my answer has come to your help. God bless and have a nice day ahead! Feel free to ask more questions.