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Question

Which of the following happen in the intial stage of a star?
  1. Increase in pressure
  2. Decrease in pressure
  3. Increase in temperature
  4. Decrease in temperature


Solution

The correct options are
A Increase in pressure
C Increase in temperature
When a spherical cloud of hydrogen and helium is bound together by gravity, a protostar (baby star) is formed. With time, the temperature and pressure increase as the particles of the star come closer and closer due to gravity.

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