The Earth has a point in which it is closest to the sun and it is called (6)_________, while the point where it is farthest from the sun is called (7)_________. The length of the day and night depends on the (8)________ of the earth. The amount of the energy received from the sun is concentrated at (9)________ angle and distributed at (10)_______ angle.
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Answer:
6.perihelion
7 earth
8. time of year
9.1/2,000,000,000