Read the Schematic Diagram of the Earth's Revolution: (1) The direction of the Earth's rotation and revolution is from _ _ _ _ to _ _ _ _ _. (2) Fill in the form: solar terms are straight.

(1) The direction of the earth's rotation and revolution is from west to east;

(2) Reading the picture, we can see that A is the vernal equinox, the sun is pointing to the equator, B is the summer solstice, the sun is pointing to the Tropic of Cancer, C is the autumnal equinox, the sun is pointing to the equator, D is the winter solstice, and the sun is pointing to the Tropic of Cancer.

So, the answer is: (1) west; East;

(2) The direct position of solar terms A vernal equinox equator B summer to tropic of cancer C autumnal equinox equator D winter to tropic of cancer.