1). -------------------------- establish the fact that earth rotates on its axis revolves around the sun.
Statement 1: Besides revolving around the Sun, a planet rotates on its own axis. Statement 2: All planets revolve around the sun and rotate on their own axis.
The day is longer on the earth by about 4 minutes because : (a) the earth is round in shape (b) the earth rotates on its axis (c) the earth revolves around the sun (d) the earth has atmosphere