Consider the following statements:
- Tropical cyclones form in the summer when the temperature is more than 27 degrees Celsius.
- The Coriolis force is mandatory for the formation of tropical cyclones.
- The Coriolis force is found to be greater in the equatorial belt.
Which of the above statement/s is/are correct?
Correct answer: A
Explanation
Tropical cyclones need sea-surface temperatures above about 27°C, so statement 1 holds, and the Coriolis force is essential to give the system its spin, making statement 2 correct. Statement 3 is wrong because the Coriolis force is zero at the equator and increases toward the poles, which is exactly why cyclones don't form within about 5 degrees of the equator.