Days when the earth’s poles are tilted at the greatest angle away from or toward the sun are called
a. equinoxes
b. rotations
c. solstices
d. revolutions

The correct answer is letter C: solstices.

There are two major ones ocurring during a solar year which influence the northern hemisphere, the summer and winter solstices. During the summer solstice the north pole reaches its highest tilt toward the sun thus causing the longest day. In contrast, during the summer solstice, the north pole is the most tilted away from the sun giving way to the shortest day. These two solstices happen on or around December 22st and June 21th as is the case for year 2019.

u idek                                                                                                                                               /