Mostly oxygen with about 21% nitrogen
Mostly nitrogen with about 21% oxygen
Mostly carbon dioxide with about 21% oxygen
Mostly oxygen with about 21% carbon dioxide
Differences in air pressure
Differences in oxygen
Differences in gravity
Differences in atmosphere
Warm air rises at the equator and cold air sinks at the poles.
Warm air sinks at the equator and cold air rises at the poles.
Warm air rises at the equator and cold air rises at the poles.
Cold air rises at the equator and warm air sinks at the poles.
The mountain makes both sides wet
The mountain makes both sides dry
The mountain makes both sides cold
the mountain makes one side wet and one side dry
Due to the pressure of oxygen
Gravity pulls gas molecules toward the surface
Because of the weight of ice crystals
Because of pollution
As electromagnetic waves
From atmospheric gases
By circulation of gases
As heat though a material
It allows more lunar radiation to reach the Earth's surface
It allows more Ultra Violet rays to reach the Earth's surface
It allows meteors to enter the Earth's atmosphere
It causes global warming
Ionosphere and mesosphere
Exosphere and troposphere
Troposphere and stratosphere
Ionosphere and exosphere
It is the process in which liquid turns to water vapor.
It carries water from precipitation into oceans.
It takes water out of the water cycle.
It is not part of the water cycle.
The humidity decreases.
Relative humidity is 100%.
It is not a form of precipitation.
It is liquid and not ice.
It starts as rain and freezes in the air.
It starts as water vapor and changes to a solid.
Warm air becomes caught between cold air masses.
Two air masses meet and stay separated.
Warm air moves over cold air and replaces it.
Cold air moves under warm air and pushes it up.
Sunny and warm
Cold and dry