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Name: Patricia A Marengo
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Question:
Why does the Sun burn if there is no oxygen in space?


Replies:
The Sun 'burns' nuclear fuel that does not need oxygen. Nuclear energy comes in two forms: fission in which heavy elements are broken down into lighter ones; and fusion in which light elements are 'fused' together to make heavier elements. Stars 'burn' by nuclear fusion.

Hawley


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