Which Atmosphere term is correctly associated with classification or zone: “persistent tropical easterly winds”, and also with “blow from subtropical highs toward the equatorial low”?

Correct Answer: Option A — Trade winds. Trade winds is correct because it is persistent tropical easterly winds. Trade winds is also associated with blow from subtropical highs toward the equatorial low. A further identifying fact is that Trade winds is deflected westward by the Coriolis effect. Another useful fact is that Trade winds is associated with help drive tropical ocean currents. Why the other options are incorrect: Option B — Westerlies: It is prevailing mid-latitude winds and is associated with blow between subtropical highs and subpolar lows; those are the identifying facts of Westerlies. Option C — Doldrums: It is an equatorial low-pressure belt and is associated with located near the Intertropical Convergence Zone; those are the identifying facts of Doldrums. Option D — Troposphere: It is the lowest major atmospheric layer and is associated with extends from the surface to the tropopause; those are the identifying facts of Troposphere. Exam Takeaway: Link Trade winds with “persistent tropical easterly winds” and “blow from subtropical highs toward the equatorial low” for quick revision.