Question

which factors cause air masses to move in the united states? check all that apply.
□ prevailing easterlies
☑ prevailing westerlies
☑ jet stream
□ trade winds
☑ front

Explanation:

1. Prevailing Westerlies: These winds blow from west to east in the middle latitudes (where the US is located) and push air masses across the US.
2. Jet Stream: A fast - moving air current in the upper atmosphere that guides the movement of air masses, influencing their path over the US.
3. Front: The boundary between different air masses (with different temperature, humidity, etc.). The interaction at fronts and the pressure differences associated with them cause air masses to move.

• Prevailing easterlies blow from east to west in low latitudes, not a main factor for US air mass movement. Trade winds are also in tropical regions and not a primary factor for US air mass movement.

Answer:

B. prevailing westerlies, C. jet stream, E. front