He wrote the letter because the letter warned him that a single nuclear bomb would make a mass destruction. ... It was the fact that the Nazis had the ability to develop the atomic bomb. It could destroy the whole world. So he warned Franklin D Roosevelt in his letter
A.
Is the correct answer
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The undreground railroads
Answer:
vegetation
Explanation:
vegetation structure and function indirectly through the effects of fire features three basic adaptive strategies.
