Which of the following causes large air masses to move along earth's surface?
A Warm air is less dense, so it rises. Cold air moves in to take its place.
B
Cold air is less dense, so it rises. As the cold air rises, warm air descends.
Big weather events like hurricanes and tornadoes cause convection currents.
D) Wind causes convection currents by stirring up the air.



Answer :

The correct answer to the question is option A:

A) Warm air is less dense, so it rises. Cold air moves in to take its place.

Here's an explanation to support this answer:

1. Warm air is less dense than cold air. When air is heated, it becomes lighter and rises because of its lower density compared to the surrounding cooler air.

2. As warm air rises, cold air moves in to replace it. This movement of air masses from areas of high pressure (cold air) to areas of low pressure (warm air) creates wind patterns and influences the movement of large air masses along Earth's surface.

By understanding the principle of air density and the behavior of warm and cold air masses, we can see how the movement of these air masses plays a significant role in shaping Earth's weather patterns and climate.