1. Tardigrade
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  3. Physics
  4. A satellite is orbiting round the earth's surface in an orbit as close as possible to the surface of the earth.

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Q. A satellite is orbiting round the earth's surface in an orbit as close as possible to the surface of the earth.

Gravitation

Solution:

As the orbital speed of a satellite in a circular orbit around earth varies inversely proportional to the square root of the orbit radius, in this case as the orbit radius is minimum options (A), (B) and (C) are correct.