It is A because it isn't D. continental drift really happened. C. They separate as plate tectonics are constantly moving. and B. Continental drift is real and the continents have clearly changed. A is the best answer.
Answer:
More efficient use of agricultural land can boost crop yields and meet growing global demand for food. Smallholders have a vital role to play, both because they produce much of the world's food and because they represent a large share of the world's poor and food insecure.
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Answer:
Large rocks and debris on a slope
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