Junior high school geography, questions 9 and 10, why choose this? Please be more specific.

Qingming is one of the 24 solar terms, and other festivals are calculated according to the solar calendar, just like Dragon Boat Festival.

10 You can see luminous celestial bodies on the moon. The sun is blocked by an unlit celestial body. You can know that the earth is between the moon and the sun. At this time, the area of the sun shining on the moon is getting smaller and smaller, so you can see the eclipse.

A solar eclipse occurs when the moon blocks the sun. When the earth is in the middle, the moon can't be seen on the first day of the first month. The moon should be completely blocked by the earth, so the sun can't be seen on the moon.