13 Underline 1 of each pair of bold words separated by / 1. When air is heated,
ID: 233562 • Letter: 1
Question
13
Underline 1 of each pair of bold words separated by /
1. When air is heated, it expands and becomes more / less dense, the pressure decreases / increases and the air rises / sinks
2. When air is cooler than its surroundings it becomes more / less dense, the pressure decreases / increases and the air rises / sinks
3. When air rises, it converges / diverges at the surface.
4. When air sinks, it converges / diverges at the surface.
This differential heating is what causes the lateral changes in atmospheric pressure which drives the winds. Differential heating can result from changes in insolation, albedo, and heat capacity.
1. Insolation is the greatest at the equator / poles and therefore air rises / sinks at the equator and rises / sinks at the poles. In the cross section below, sketch a simplified convection cell (known as a Hadley cell) showing rising or sinking air at the equator and the poles and horizontal flow at the surface and the upper troposphere. Indicate the location of High and Low pressure with an H and L
2. Land has a much lower heat capacity than water and therefore heats / cools up more rapidly in the day and heats / cools more rapidly at night. The resulting differential heating causes land and sea breezes. In the two cross sections below, sketch the land sea convection cells showing rising or sinking air and horizontal flow for both daytime and nighttime. Indicate the location of High and Low pressure with an H and an L and indicate whether it is a sea breeze or a land breeze.
Explanation / Answer
1. When air is heated, it expands and becomes less dense, the pressure decreases and the air rises.
2. When air is cooler than its surroundings it becomes more dense, the pressure increases and the air sinks.
3. When air rises, it diverges at the surface.
4. When air sinks, it converges at the surface.
1. Insolation is the greatest at the equator and therefore air rises at the equator and sinks at the poles.
2. Land has a much lower heat capacity than water and therefore heats up more rapidly in the day and cools more rapidly at night.
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.