Option c would be the most befitting one.
Answer:
The Berlin tragedy is no longer a problem because the wall was taken down, and families were able to reunite and have their families together again.
Explanation:
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Your question: <span>A principal land use over large areas of Asia and Africa where the climate is too dry to produce crops is ____________.
Your answer: </span>A principal land use over large areas of Asia and Africa where the climate is too dry to produce crops is nomadic herding.
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