Which of the following heat zones are correct?

1. Frigid Zone: 66½°N to 66½°S
2. Temperate Zone: 90°N to 90°S
3. Torrid Zone : 23½°N to 23½°S
4. All of the above.

Which of the following is true about lines of longitude?

1. They run parallel to the Prime Meridian.
2. They are full circles
3. They are 360 lines at 1° interval.
4. All of the above.

Assertion (A): 1° angular distance of the parallels of latitudes is roughly equal to 111 km.

Reason (R) : The poles are each located at 90° angular distance north or south of the Equator.

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 distance between two lines of longitude is maximum at which latitude?

1. Tropic of Cancer
2. North Pole
3. Equator
4. Arctic circle