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Home Q & A Board Science-Related Homework Help Physics
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killian killian
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10 years ago
Which two energy sources can help a star maintain its internal thermal pressure?
A) nuclear fusion and gravitational contraction
B) nuclear fission and gravitational contraction
C) nuclear fusion and nuclear fission
D) chemical reactions and gravitational contraction
E) nuclear fusion and chemical reactions
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padrepadre
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10 years ago
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killian Author
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#2
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10 years ago
Thx sir
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