The sun continuously produces an enormous amount of energy. This la due to

A. nuclear fission

B. nuclear fusion

C. chemical combustion

D. boiling

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  1. When a body is projected upwards
  2. The image of an object formed on the retina of the eye is
  3. When a body Is taken to the poles from the equator, Its weight becomes
  4. The first Indian Satellite launched from a Russian Cosmodrome on April 16, 1975 was named
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  6. The completely dark portion of a shadow of an object is known as
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  18. Cosmic rays are
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  20. Increase in pressure
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  22. Choose the scalar quantity from the following physical quantities
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  27. In the case of bodies falling under gravity which of the following remains constant at a given place?
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