High school geography people teaches printing plate compulsory examination questions. Ask the master to answer ~ know the picture questions.

The closer to the equator, the greater the linear velocity, so Ding's linear velocity is the largest. The extreme night phenomenon occurs in the Tropic of Cancer, which shows that the sun shines directly on the Tropic of Cancer. At noon, the height of the sun differs by 90 latitude, so H = 90°-23° 26' = 66° 34', and the equatorial region is equally divided day and night all year round, so the day length of Dingdi is 65,438+02 hours. From the figure, it can be seen that 90 E is 65,434. According to the saying that "near is fast, far is slow", the winter solstice is closer to January, so the rotation speed is fast, and the sun shines directly (90 E, 23 26' s).