Question

what is this gravity ​

Answer 1

Answer:

an invisible force that pulls objects toward each other. Earth's gravity is what keeps you on the ground and what makes things fall. An animation of gravity at work. Albert Einstein described gravity as a curve in space that wraps around an object—such as a star or a planet.

Explanation:

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Answer 2

pressure acting up on inversely towards the core of Earth with force .

This is simple definition