'Climatic variations' and 'Human activities' can be regarded as the two main causes of desertification. removal of the natural vegetation cover（by taking too much fuel wood）, agricultural activities in the vulnerable ecosystems of arid and semi-arid areas, which are thus strained beyond their capacity.
Answer:
i don't understand your question can you make your question more simpler please
Explanation:
We were far away from Germany, Italy and Japan. Water seperated the U.S. from the attacking countries so it was harder for them to attack the U.S.
Turkey the country or the animal they both have effects in the US sry if that sounded like a dumb question
