Question

directions: select all the correct answers. which of the following strongly affects the movement of air masses along the earth’s surface? differences in air pressure differences in nitrogen content differences in carbon dioxide content the earth’s rotation

Explanation:

1. Differences in air pressure: Air moves from high - pressure areas to low - pressure areas, so pressure differences are a primary driver of horizontal air movement (wind) along the Earth's surface.
2. The Earth's rotation: The Coriolis effect, caused by the Earth's rotation, deflects the path of moving air masses, significantly influencing their direction of movement along the surface.
3. Differences in nitrogen content: The nitrogen content in the air is relatively constant (about 78% of the atmosphere) across different regions, so it does not cause air masses to move.
4. Differences in carbon dioxide content: Carbon dioxide makes up a very small percentage of the atmosphere (about 0.04%) and its concentration differences are not a major factor in driving large - scale air mass movement along the surface.

Answer:

A. differences in air pressure
D. the Earth's rotation