Question

2.________keeps earth and all other planets in the orbit around the sun.​

Answer 1

Explanation:

1. Energy of the sun planet system is constant.

2. According to Kepler's law of periods, angular momentum is also constant.

whereas the force of attraction keeps changing, because the distance between the sun and the planet is not constant.

Since the planet is moving in elliptical orbit, it's velocity keeps changing from point to point, hence linear momentum is not constant.

I hope that will be help you my friend

Answer 2

Explanation:

☆ Gravity keeps earth and all other planets in the orbit around the sun .

☆ Food gives us energy to do work .

☆ water turn winds into electricity.

☆ Natural gas is ______ and eco friendly.

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