What was the main reason native born Americans not happy to see the new immigrants

Many of these new immigrants were coming from eastern and southern Europe and for many English-speaking, native-born Americans of northern European descent the growing diversity of new languages, customs, and religions triggered anxiety and racial animosity.

Explanation:

Thus nativism has become a general term for opposition to immigration based on fears that immigrants will "distort or spoil" existing cultural values. In situations where immigrants greatly outnumber the original inhabitants, nativist movements seek to prevent cultural change.

Explanation:

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the causes of the dust bowls were severe droughts,   lands became dry and hard, temperature was higher than usual, hot and dry conditions killed crops, high winds. because of those factors, the winds kicked up dry soil and created clouds of dust.

necessary and proper clause. the congress shall have power to all laws which shall be necessary and proper for carrying into execution the foregoing powers, and all other powers vested by this constitution in the government of the united states, or in any department or officer thereof.