Assertion (A): All places on a particular meridian will have noon at the same time.

Reason (R): The sun crosses a meridian at noon.

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.

The Earth has been divided into how many Time Zones?

1. 48
2. 20
3. 12
4. 24

Which of the following is true about the International Date Line?

1. It goes zig-zag at two points.
2. The date changes as one moves across it.
3. It is opposite the Prime Meridian.
4. All of the above.

Assertion (A): For each 1° longitude towards the East, 4 minutes are to be added and each 1° longitude towards the West, 4 minutes are to be subtracted.

Reason (R): The earth rotates on its axis from East to West.

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. 111.
3. A is true but R is false.
4. A is false but R is true.