Different physical factors and positions, or movements, of the earth cause different amounts for energy to strike on the surface of the earth. identify these filling in the blanks:
a. shape: i.
b. position i.
c. movements i. ii.

Gravity, friction, buoyancy,inertia, centripetal force are all forces effecting it. It's tilt causes gravity, all of the waves on the electromagnetic spectrum effect it. human activity even causes energy with the cation of antimatter. Nuclear forces also effect it. rotation and revolving also are some factors these are just some of many. Also distance from the sun and acceleration as it orbits.