Civil Services Prep

Prelims MCQ · Geography

Consider the following stages in the development of an extra-tropical cyclone:

  1. Warm air moves poleward and cold air moves equatorward, initiating cyclonic circulation.
  2. The polar front is initially stationary, and pressure begins to fall along it.
  3. The faster-moving cold front overtakes the warm front, lifting the warm air and producing occlusion and dissipation.
  4. Warm air glides over cold air ahead of the warm front, while the cold front advances from behind.

Which one of the following is the correct sequence?

  1. 1–2–4–3.
  2. 2–4–1–3.
  3. 2–1–4–3.
  4. 4–2–3–1.
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