Question

What would cause the rotation of the earth to stop?

Answer 1

As Earth rotates, the Moon's gravity causes the oceans to seem to rise and fall. (The Sun also does this, but not as much.) There is a little bit of friction between the tides and the turning Earth, causing the rotation to slow down just a little. As Earth slows, it lets the Moon creep away.

Answer 2

There will be night at one part of earth and day at one part of earth. One side of earth will face Sun all the time so there will be soo hot climate and on other side there will be cold climate forever.