Earth's seasons

You might need: Periodic table

The chart below shows the length of daylight (in hours) in the northern hemisphere. The chart includes three different latitudes and four different times of year.

	$30 ° N$ ‍	$60 ° N$ ‍	$90 ° N$ ‍
March $21 st$ ‍	$12$ ‍	$12$ ‍	$12$ ‍
June $21 st$ ‍	$14$ ‍	$19$ ‍	$24$ ‍
September $21 st$ ‍	$12$ ‍	$12$ ‍	$12$ ‍
December $21 st$ ‍	$10$ ‍	$6$ ‍	$0$ ‍

Which statement best explains the change occurring at $30 ° N$ ‍ latitude between September and December?

(Choice A)
Day length is becoming shorter because winter is approaching.
(Choice B)
Day length is becoming longer because winter is approaching.
(Choice C)
Day length is becoming longer because summer is approaching.
(Choice D)
Day length is becoming shorter because summer is approaching.

AP®︎/College Environmental science

Course: AP®︎/College Environmental science > Unit 3

Problem