How is citizenship achieved in the united states? check all that apply. citizenship by birth citizenship by residency citizenship by naturalization citizenship by employment citizenship by immigration

citizenship by birth and naturalization

Explanation:

if someone was born on U.S soil (that includes military bases) they are automatically a U.S citizen

if an immigrant wants citizenship they would have to go through a process of naturalization

By birth and naturalization.

Explanation:

Just because you live or work in the U.S. doesn't necessarily make you a citizen. You can live or work in the U.S. through a green card and not actually be an American citizen. Immigration doesn't necessarily mean you've legally entered the U.S., although you can legally immigrate, it doesn't automatically make you a citizen.

c. taught scientists many new things about the earth, but not other planets.

explanation:

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