Read the Schematic Diagram of the Sun Illuminating the Earth One Day and answer the following questions. (1) Draw a termination line in figure 1 and use a shadow to represent the night hemisphere; Tha

Read the Schematic Diagram of the Sun Illuminating the Earth One Day and answer the following questions. (1) Draw a termination line in figure 1 and use a shadow to represent the night hemisphere; That day a, b, c (1) According to the distribution characteristics of day and night in the figure, there is polar night in the Arctic Circle and its north, when the sun shines directly on the Tropic of Capricorn, which is a solar term from winter to sun, and the longest day in A, B and C is in the southern hemisphere.

(2) Position B is located on the equator, which is 23 26 ′ smaller than the noonday sun elevation angle of 66 34 ′ of the Tropic of Capricorn.

(3) At this time, it is the winter solstice, the direct point reaches the southernmost point, and then begins to move northward. After that, the polar night range in the Arctic Circle will be reduced within one month.

So the answer is: (1) as shown in the figure. C.

(2) b

(3) extreme night? Contraction.