1.2.1 Global Atmospheric Circulation

• Order the steps in the Hadley cell mechanism.

  1️⃣ Warm air rises at the equator

  2️⃣ Air cools and loses moisture

  3️⃣ Dry air descends at 30° N/S
• Global atmospheric circulation is driven by solar radiation and the Earth's rotation
• Match the global atmospheric circulation cell with its impact.

  Hadley cell ↔️ Creates trade winds and deserts

  Ferrel cell ↔️ Causes variable weather conditions

  Polar cell ↔️ Creates polar high pressure zones
• What type of winds are created by the Hadley cells?

  Trade winds
• Order the steps in the Ferrel cell mechanism.

  1️⃣ Warm air rises at 60° N/S

  2️⃣ Air cools and creates low pressure

  3️⃣ Cooler air sinks at 30° N/S
• The Hadley cells create trade winds and deserts at 30° N/S latitude
• What is the location of the Hadley cells?

  0° to 30° latitude
• Global atmospheric circulation is primarily driven by solar radiation
• Arrange the major global atmospheric circulation cells from lowest to highest latitude:

  1️⃣ Hadley

  2️⃣ Ferrel

  3️⃣ Polar
• The Ferrel cells create variable weather conditions.


  True
• Describe the mechanism of the Ferrel cells:

  1️⃣ Warm air rises at 60° N/S

  2️⃣ Air cools and creates low pressure

  3️⃣ Cooler air sinks at 30° N/S
• Match the atmospheric circulation cell with its key characteristic:

  Hadley ↔️ Trade winds and deserts

  Ferrel ↔️ Variable weather conditions

  Polar ↔️ Polar high pressure zones
• What does the Hadley cell create at 30° N/S latitude?

  Trade winds and deserts
• Global atmospheric circulation helps redistribute heat around the globe.

  True
• Global atmospheric circulation is driven by solar radiation and the Earth's rotation
• Global atmospheric circulation helps redistribute heat around the globe.


  True
• The Earth's rotation generates the Coriolis effect, which deflects wind direction to the right in the Northern Hemisphere
• Order the steps in the Hadley cell mechanism.

  1️⃣ Warm air rises at the equator

  2️⃣ Air cools and loses moisture

  3️⃣ Dry air descends at 30° N/S
• The Ferrel cells create trade winds and deserts at 30° N/S latitude.

  False
• The Ferrel cells are located between 30° and 60° latitude.

  True
• The Polar cells create polar high pressure zones.

  True
• What is the primary effect of the Polar cells?

  Polar high pressure zones
• The Coriolis effect shapes the overall pattern of global atmospheric circulation.


  True
• Subtropical deserts are formed due to descending air in the Hadley cells
• Cold air sinks at the poles in the Polar cells
• What is the impact of the Hadley cells on weather conditions?

  Trade winds and deserts
• The Coriolis effect is a result of Earth's rotation
• What type of pressure zones do the Polar cells create at the poles?

  Polar high pressure
• The Hadley cells create the trade winds and subtropical deserts at 30° N/S latitude.
• The Polar cells create high pressure zones at the poles.


  True
• Which circulation cell contributes to the formation of subtropical deserts?

  Hadley cells
• The Hadley cells create tropical and subtropical climate zones.
• What type of climate zones do the Hadley cells create?

  Tropical and subtropical
• Match the cell with its role in climate:

  Hadley Cells ↔️ Trade winds and subtropical deserts

  Ferrel Cells ↔️ Temperate weather patterns

  Polar Cells ↔️ Polar high pressure
• The Amazon rainforest receives high rainfall due to the rising warm air in the Hadley cells.


  True
• Match the atmospheric cell with its mechanism:

  Hadley Cell ↔️ Warm air rises at the equator

  Ferrel Cell ↔️ Warm air rises at 60° N/S

  Polar Cell ↔️ Cold air sinks at the poles
• The Earth's rotation creates the Coriolis effect, which deflects wind direction and shapes the circulation cells.
• Between which latitudes are the Ferrel cells located?

  30° to 60°
• Match the factor with its impact on global atmospheric circulation:

  Solar Radiation ↔️ Drives air movement and pressure differences

  Earth's Rotation ↔️ Creates the Coriolis effect
• What are the fundamental causes that drive the global atmospheric circulation system?

  Uneven solar heating, Coriolis effect