Read the solar illumination map of the earth on a certain day and answer 3 ~ 5 questions. On this day, the chart shows that the solar terms in China are () A. vernal equinox B. summer solstice C. autu

Read the solar illumination map of the earth on a certain day and answer 3 ~ 5 questions. On this day, the chart shows that the solar terms in China are () A. vernal equinox B. summer solstice C. autumn equinox. When the earth revolves around the sun, the axis of the earth and the orbital plane form a fixed inclination of 66.5, which makes the direct point of the sun's rays move regularly between the tropic of cancer in a year.

According to the chart, there is an extreme solar phenomenon in the Antarctic circle, indicating that the direct point of the sun is on the tropic of Capricorn, which is the winter solstice in the northern hemisphere (China is located in the northern hemisphere); Combination options.

Therefore, choose: d.