Answer:

gravitational force along withcentripetal and centrifugal force

Explanation:

huge mass of stars provide gravitation and helps move planets and centrifugal and centripetal forces help to balance the planets to revolve around star

Answer:

Gravitational force or gravitational pull.

Explanation:

At present, the Earth receives about 1,500 Watts of power per square meter from the Sun. In order to obtain enough power to migrate the Earth in the right amount of time, we'd need to build an array (in space) that collected that entire 4.7 × 1035 Joules of energy, evenly, over a time period of two billion years.

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