The difference between solstice and equinox is:

A. During the equinox the solar energy falls on the equator allowing all of Earth to receive equal amount of energy and during the solstice the solar energy falls on the tropics allowing them to receive the largest amount of energy.
B. During the equinox the Earth receives the largest amount of energy in the north pole and not during the solstice.
C. During the solstice the solar energy falls on the equator making all of Earth to receive equal amount of energy and during the equinox the solar energy falls on the tropics making them receive the largest amount of energy.
D. There is no difference they mean the same thing.