Easy quiz plz fast 26 points 1. what causes day and night a. earth's revolution around the sun b. earth's rotation on its axis c. gravity d. earth's orbit 2. what causes summer in the northern hemisphere? a. the tilt of the earth's axis causes more direct sunlight in that hemisphere b. the earth is closer to the sun at that time c. the tilt of the earth's axis causes less direct sunlight d. the earth is farther from the sun at that time 3. what causes the sun to move in the sky? a. the sun is moving in space b. the big bang theory c. gravity d. the earth spinning on its axis 4.what direction did the lamp posts shadow move? a. west to east b. north to south c. east to west d. south to north