Question

Which of the following is true about Hadley's original model of global atmospheric circulation?

a. There are three cells: the Hadley cell, the Ferrel cell, and the polar cell.
b. This model predicts the trade winds, westerlies, and polar easterlies.
c. This model explains most of the large-scale motion observed on Earth.
d. There is rising air at the equator and sinking air at the poles.
e. This model can exist on a rotating planet.

Answer 1

Hadley's original model of global atmospheric circulation predicted the trade winds and described rising air at the equator and sinking air at the poles, but it did not account for the effects of a rotating planet such as the Coriolis force and is too simplified to explain all large-scale atmospheric motions on Earth.

Step-by-step explanation:

The question pertains to Hadley's original model of global atmospheric circulation. Looking at the options provided:

• (a) Hadley's original model only conceptualized a single cell extending from the equator to the poles and did not include the Ferrel or polar cells.
• (b) The model predicted the trade winds that arise due to air circulation patterns.
• (c) The original model by Hadley is overly simplified and does not explain most of the large-scale atmospheric motion on Earth.
• (strong)(d) Hadley's model indeed describes rising air at the equator and sinking air at the poles.
• (e) Hadley's model does not account for the effects of a rotating planet, such as the Coriolis force.

Therefore, out of the options given, option (b) 'This model predicts the trade winds, westerlies, and polar easterlies.' and option (d) 'There is rising air at the equator and sinking air at the poles.' are true about Hadley's original model of global atmospheric circulation.