Question

What are the [Two] main forces that act on gases in a star?

A. An inward pull due to gravity

B. An inward pull due to the explosive pressure of burning fuel

C. An outward push due to gravity

D. An outward push due to the explosive pressure of burning fuel.​

Answer 1

A. An inward pull due to gravity

D. An outward push due to the explosive pressure of burning fuel.

Explanation:

Pressure and gravity. Pressure due to fusion reactions pushes outwards. Gravity pulls inwards to keep the star in equilibrium.

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