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AssignmentMultiple Select

The Sun

Question 1 • AZ-Earth and Space Science A (SC301)

Choose the ingredients needed for nuclear fusion. Check all that apply.heavy nucleihelium gashigh temperatureshydrogen gaslow pressure

Answer
A
heavy nuclei
B
helium gas
C
high temperatures
D
hydrogen gas
E
low pressure

Explanation

Nuclear fusion joins light nuclei, such as hydrogen nuclei, so hydrogen gas is a needed fuel. The nuclei must be heated to very high temperatures to overcome their electrical repulsion and fuse. Heavy nuclei and helium gas are not required starting ingredients, and fusion requires high—not low—pressure.

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