A geo-stationary satellite is one which orbits the earth with a velocity of rotation of A. Moon B. Earth C. Sun D. Pole

The correct answer is: B. Earth

A geostationary satellite is a satellite that orbits the Earth at an altitude of approximately 35,786 kilometers (22,236 miles). This is the altitude at which a satellite will orbit the Earth at the same rate that the Earth rotates on its axis. This means that the satellite will appear to stay in the same position in the sky, relative to the Earth’s surface.

Geostationary satellites are used for a variety of purposes, including communications, weather forecasting, and navigation.

The other options are incorrect because:

• The Moon orbits the Earth at an average distance of 384,400 kilometers (238,900 miles).
• The Sun is a star that is located at an average distance of 149.6 million kilometers (92.96 million miles) from the Earth.
• The poles are the points on the Earth’s surface that are located directly north and south of the equator.