GEOLOGY

Detailed explanation-1: -The movement of air is mainly caused due to the differences in pressure and temperature. Warm air is lighter and it rises upwards, meanwhile, cold air is denser and hence it moves down to replace the warm air. This phenomenon creates wind.

Detailed explanation-2: -The difference in barometric pressure between observation sites at different elevations is a measure of the density of air in a column of air between those two elevations. Cold air is denser than warm air.

Detailed explanation-3: -The air of cold air masses is more dense than warmer air masses. Therefore, as these cold air masses move, the dense air undercuts the warmer air masses forcing the warm air up and over the colder air causing it to rise into the atmosphere.

Detailed explanation-4: -As the molecules heat and move faster, they are moving apart. So air, like most other substances, expands when heated and contracts when cooled. Because there is more space between the molecules, the air is less dense than the surrounding matter and the hot air floats upward.

Detailed explanation-5: -Describe the three major factors that determine how air circulates in the lower atmosphere. The three major factors that determine how air circulates in the lower atmosphere are uneven heating of the earth’s surface by the sun, rotation of the earth on it’s axis, and the properties of air, water, and land.