Why is insolation not equal throughout the world?

Based on current rates the earths human population is expected to grow how much by 2050

Afathom is a unit of length, usually reserved for measuring the depth of water. a fathom is approximately 6 ft in length. take the distance from earth to the moon to be 230,000 miles, and use the given approximation to find the distance in fathoms.

What is the process that powers plate tectonics