Because of conservation of angular momentum,as the Earth's rotation slows in response to the Moon's tidal pull,the Moon's distance from Earth increases.

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This is known as tidal acceleration, which causes the Moon's orbit to gradually move farther away from Earth. Conservation of angular momentum requires that the total angular momentum of the Earth-Moon system remains constant, so as the Moon's orbital energy increases, the Earth's rotational energy decreases, resulting in a slower rotation.

Because of Conservation of Angular Momentum,as the Earth's Rotation Slows