Assertion (A): Rotation is the spinning of the earth on its axis from west to east once in 24 hours.

Reason (R): The earth is always tilted in the same direction as it moves round the sun.

1. Both A and R are true and R is the correct explanation of A.
2. Both A and R are true but R does not explain A.
3. A is true but R is false.
4. A is false but R is true.

Assertion (A): The winds and ocean currents move clockwise and are deflected to the right in the Northern Hemisphere.

Reason (R): Coriolis Effect refers to the force experienced by any object moving over the surface of a rotating body such as the earth.

1. Both A and R are true and R is the correct explanation of A.
2. Both A and R are true but R does not explain A.
3. A is true but R is false.
4. A is false but R is true.

Which of the following is correct?

1. Aphelion : earth is closest to the sun
2. Aphelion: earth is farthest from the sun
3. Aphelion : moon is closest to the earth
4. Aphelion : the equator is closest to the sun.

What is the time difference between two consecutive lines of longitude?

1. 7½ minutes
2. 4 minutes
3. 1 minute
4. 3 minutes