Which of the following statements describing the situation at a mid-latitude site at the time of equinox is CORRECT?
A) Day and night are of equal length.
B) The midday Sun is at its highest in the sky on this date.
C) There is no real darkness at this site on this date, only extended twilight.
D) This is the longest day at this site.

Question

Quizplus · Accepted Answer

At equinox, day and night are of equal length at all mid-latitude sites. This is because the tilt of the Earth's axis is perpendicular to the angle between the Sun and the equator, resulting in equal illumination of the Northern and Southern Hemisphere. Therefore, option A is correct. Option B is incorrect because the midday Sun is at its highest in the sky on the summer solstice, not equinox. Option C is incorrect because there is indeed real darkness at night, although the length of the night is equal to the length of the day. Option D is incorrect because the summer solstice is the longest day.

Which of the Following Statements Describing the Situation at a Mid-Latitude