Read the schematic diagram of the sun shining on the earth and complete the following questions. (1) At this time, the solar terms in the northern hemisphere are _ _ _ _ _ _, and the length of day and

Read the schematic diagram of the sun shining on the earth and complete the following questions. (1) At this time, the solar terms in the northern hemisphere are _ _ _ _ _ _, and the length of day and night in the Antarctic circle is _ _ _ _ _. (2 (1) In the picture, the polar night appears in the Arctic Circle and its north, which is the winter solstice in the northern hemisphere, and the polar sunrise appears in the Antarctic Circle and its south.

(2) H = 90-the latitude difference between them, the sun is directly on the Tropic of Capricorn, and the noon sun elevation angle at point A is 66 34'; The solar arc at the latitude of point B is 4 grids, each grid is 2 hours, and the day length is 8 hours. 12+ day length /2= sunset time = 16 hours.

(3) From winter to Sunday, the time is 65438+February 22nd, Beijing is cold and dry, and the water temperature in the North Pacific is close to the lowest value in a year. In the world, the day and night isochron is March 2 1 or September 23, and 65438+February 22 is suitable for visiting the Antarctic.

(4) The sun shines directly on the Tropic of Capricorn, the termination line is tangent to the polar circle, and the extension line of the incident light from the sun shines through the center of the earth, forming an included angle of 23.5 with the equatorial plane. So I chose BD.

So the answer is:

(1) The winter solstice is exceptionally bright.

(2)66 34′8? 16

(3) communication

(4)BD