Answer:if im sure it is D
A. is a duty of congress. They can say a law is unconstitutional based in their views on the law but they cant declare one unconstitutional. But the President can declare a law unconstitutional and change it.
Answer: Quakers and other reformers who thought slavery was wrong
Explanation:
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Can you translate it to English please
Variation in the relative frequency of different genotypes in a small population, owing to the chance disappearance of particular genes as individuals die or do not reproduce.