A friend tells you he read on a Web site that Earth is getting smaller. What can you tell him that shows Earth's size is not changing?

The earth is not getting smaller

Explanation:

when earth movements occur, they either destroy or make some new features hence there is no difference in change in size.

answer; /// i believe that one of the causes is (a loss of habitat);

a mid-ocean ridge or mid-oceanic ridge is an underwater mountain range, formed by plate tectonics. this uplifting of the ocean floor occurs when convection currents rise in the mantle beneath the oceanic crust and create magma where two tectonic plates meet at a divergent boundary.a geomagnetic reversal is a change in a planet's magnetic field such that the positions of magnetic north and magnetic south are interchanged.