Read the schematic diagram of the earth's revolution and complete the following questions. (1) When the earth is in orbit ②, the solar terms in the northern hemisphere are _ _ _ _ _. (2) On National D

Read the schematic diagram of the earth's revolution and complete the following questions. (1) When the earth is in orbit ②, the solar terms in the northern hemisphere are _ _ _ _ _. (2) On National Day, (1) During the revolution of the earth, the direct point of the sun moves regularly between the tropic of cancer. When the earth revolves to ②, the direct point of the sun is at the equator, and the solar term in the northern hemisphere is the vernal equinox (about 2 1 March).

(2) The National Day is 65438+ 10/,and the earth's position should be between 3 ④ (autumnal equinox on September 23rd, winter solstice on February 22nd);

(3) When the earth revolves between ① and ②, the northern hemisphere transits from spring to summer, and the days in the northern hemisphere become longer and the nights become shorter; The day is longer than the night;

(4) Combined with the diagram: When the earth is in orbit ③, the direct point of the sun is on the tropic of Capricorn.

So the answer is: (1) vernal equinox; (2)C； (3) long; (4)D。