Lesson eLearning

Which atmospheric condition is most responsible for the formation of a tropical cyclone over the Bay of Bengal?

hard MCQ 4 marks Class 9 · Geography · Climate
  1. Low pressure over the Arabian Sea
  2. High humidity in the upper troposphere
  3. Warm sea surface temperature above 26.5°C
  4. Strong vertical wind shear
Answer
Warm sea surface temperature above 26.5°C

The correct answer is Warm sea surface temperature above 26.5°C — Conclude that warm sea surface temperature above 26.5°C is the key factor.

Step-by-step solution

  1. Recall that tropical cyclones form over warm oceans.
  2. Understand that a sea surface temperature above 26.5°C provides sufficient latent heat.
  3. Note that warmer water enhances evaporation and convection.
  4. Realise that this temperature threshold is crucial for cyclone development.
  5. Conclude that warm sea surface temperature above 26.5°C is the key factor.
Common mistake: Overlooking sea surface temperature, focusing on wind shear

Concept tested: Tropical cyclone formation

Published · How this solution was prepared and checked

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