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Weather: Test Review

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Does denser air have more or less pressure than less dense air?
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Terms in this set (62)
Does denser air have more or less pressure than less dense air?
Denser air has greater air pressure.
Image: Does denser air have more or less pressure than less dense air?
Where is the denser air in the atmosphere?
Denser air is at the surface of the Earth.
Image: Where is the denser air in the atmosphere?
What is the lowest layer of the atmosphere where weather occurs?
Troposphere
Image: What is the lowest layer of the atmosphere where weather occurs?
What is air pressure?
The force of air molecules pushing on an area
Image: What is air pressure?
As elevation ___________, air pressure decreases.
increases (As altitude increases)
Image: As elevation ___________, air pressure decreases.
What is the source of energy for the atmosphere?
The sun!
As sunlight comes into the Earth's atmosphere, what three things can happen to it?
It can be reflected back to space (30%), absorbed by the atmosphere (20%) and it can be absorbed by the surface - land or ocean (50%).
Image: As sunlight comes into the Earth's atmosphere, what three things can happen to it?
What is INSOLATION?
The amount of solar radiation reaching a given place on the Earth.
Image: What is INSOLATION?
Which part of the Earth gets the most direct insolation?
The equator has the highest angle of insolation (90 degrees).
Image: Which part of the Earth gets the most direct insolation?
Which part of the Earth gets the least direct insolation?
The poles have the lowest angle of insolation (30 degrees)
Image: Which part of the Earth gets the least direct insolation?
What determines the amount of solar insolation received?
The latitude on the Earth determines the amount of solar insolation received.
Image: What determines the amount of solar insolation received?
Does the amount of sunlight coming from the sun change?
No, the amount of sunlight does not change. It just feels less hot at the Earth's poles because it is spread out over more of a distance.
Which area on Earth gets the most direct sunlight?
The equator gets the most direct sunlight.
Image: Which area on Earth gets the most direct sunlight?
Which area of Earth gets the most indirect sunlight?
The Earth's poles get the most indirect sunlight.
Image: Which area of Earth gets the most indirect sunlight?
Name two factors that cause the uneven heating of the Earth's surface.
1. The Earth's shape - sunlight gets more spread out as you move away from the equator.
2. The Earth's Tilt - this causes seasonal variations in the amount of incoming solar insolation.
Image: Name two factors that cause the uneven heating of the Earth's surface.