Read the "Schematic Diagram of the Earth's Revolution" and complete the following questions. Question 1: when the earth revolves to ①, the solar terms in Yancheng are a. vernal equinox B. summer solst

Read the "Schematic Diagram of the Earth's Revolution" and complete the following questions. Question 1: when the earth revolves to ①, the solar terms in Yancheng are a. vernal equinox B. summer solstice C.

Question 1:A?

Question 2: A.

Test analysis:

Question 1: As can be seen from the picture, ① is the vernal equinox, ② is the summer solstice, ③ is the autumnal equinox, ④ is the winter solstice, and when the earth revolves to ①, the solar term in Yancheng is the vernal equinox.

Question 2: The earth keeps rotating around its axis, which is called earth rotation. The direction of the earth's rotation is from west to east, and the rotation period is one day. The phenomena produced by the earth's rotation are the alternation of day and night, the rising of the sun, the rising of the moon, the setting of the stars in the west and the time difference. The rotation of the earth around the sun is called the revolution of the earth. The direction of the earth's revolution is from west to east, and period of revolution is a year. The revolution of the earth around the sun has produced changes in the height of the sun in four seasons and at noon.