Look at the picture and answer the following questions. (1) Mark the names of solar terms represented by A, B, C and D in the figure. A _ _ _ _ _ _D _ _ _ _ _。 (2) When the earth revolves around the s

Look at the picture and answer the following questions. (1) Mark the names of solar terms represented by A, B, C and D in the figure. A _ _ _ _ _ _D _ _ _ _ _。 (2) When the earth revolves around the sun. (1) As can be seen from the figure, when the earth revolves to the place A, the sun shines directly on the Tropic of Cancer, which is the summer solstice in the northern hemisphere; When the earth revolves to D, the sun shines directly at the equator, which is the vernal equinox in the northern hemisphere.

(2) As can be seen from the picture, when the earth revolves to A, the sun shines directly on the Tropic of Cancer.

(3) The phenomena produced by the revolution of the earth are the change of seasons and the change of the altitude angle of the sun.

(4) March, April and May are spring in the northern hemisphere every year.

Therefore, the answer is: (1) summer solstice; Vernal equinox; (2) Tropic of Cancer; (3) Four seasons; (4) spring.