clouds
what makes up 21% of earth's atmosphere?
oxygen
how high is the exosphere?
300 km, 600 km
what is the atmosphere?
mixture of gasses in the earth.
What is transpiration?
water vapor is released into the air.
how are tornado's formed?
when hot air, cold air, and dry air mix.
what makes up 78% of the atmosphere?
Nitrogen
how high is the troposphere?
90 km, 300 km
what is ozone?
shields living things from the sun.
what is considiriation?
process when water vapor changes into a liquid.
what do you need to make a tornado?
hot air, cold air, and dry air blowing from different directions.
what makes up 1% of the atmosphere?
arogon, carbon dioxcide, hidrogen, ozone, methane, carbon monoxcide, helium, neon, krypton, xenon
how high is the mesosphere?
50 km, 90 km
what is the water cycle?
also called hydroponic cycle.
what is precipitation?
water form falls into ice.
where does cold air come from?
the southern part of the U.S.
what is ozone?
shields living things from sun.
how high is the stratosphere?
16 km, 50 km
what is the hydrolic cycle?
also called the water cycle/ moving water?
what is global winds?
blow steadily across earth's surface.
where does hot air come from?
the northern U.S.
what is the atmosphere?
mixture of gases surronding earth.
how high is the troposphere?
0 km, 16 km
what is the evaporation?
liquid turns to vapor.
what is the jet stream?
global high altitude.
Where does dry air come from?
the western part of the U.S