Multiple choice

The earth turns through 3600 in 24 hours. Each 150 longitude represents

  1. half an hour

  2. forty-five minutes

  3. one hour

  4. one hour and fifteen minute

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

360° rotation in 24 hours means each hour of Earth's rotation equals 15° of longitude. This 1-hour time difference per 15° is the basis of time zones worldwide.