7) A circulation of air is shown in the model. This air pattern is responsible for many of the distributions of climate and weather across the globe. Which factors most likely result in the deposition of warm, dry air at the surface of the Earth at 30 degrees north and south? A) Cold air is denser than warm air and is pulled by gravitational forcesAir at the Earth's surface is under greater pressure , which causes it to heat up. B) Cold air is less dense than warm air and remains in the upper troposphere . Air at the Earth's surface is under greater pressure , which causes it to heat up C) Cold air is less dense than warm air and is pulled by gravitational forces . Air at the Earth's surface is under greater pressure , which causes it to heat up . D) Cold air is denser than warm air and is pulled by gravitational forces . Air at the Earth's surface is under greater pressure , which causes it to become colder .

C) Cold air is less dense than warm air and is pulled by gravitational forces. Air at the Earth's surface is under greater pressure, which causes it to heat up.