1
lesson pretestMultiple Choice

Pretest

Question 1 • Physical Science

Why are very high temperatures and pressures required for fusion to occur?

Answer
A
to overcome the repulsion between the protons in the nuclei that join
B
to keep the uranium fuel separate from the control rods
C
to maintain the proper conditions to keep the chain reaction going
D
to generate the neutrons that are needed to break the nuclei
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Why are very high temperatures and pressures…