Atmosphere Flashcards
The atmosphere is…
A mixture of gases that surrounds the Earth.
The Earth’s percentages atmosphere is..
78% nitrogen
21% oxygen
1% other
Water is also found in the atmosphere in the form of a gas called
Water vapor
What happens to air pressure as elevation increases in the Earth’s atmosphere?
Air pressure decreases
Starting at the Earth’s surface what are the four main layers of the atmosphere?
Troposphere, stratosphere, mesosphere and thermosphere
What happens to the temperature in the troposphere?
Decreases
What happens to the temperature in the stratosphere and why
increases because of ozone layer
What happens to the temperature in the Mesosphere
decreases alot
What happens to the temperature in the thermosphere
increases a lot
What is the layer closest to the Earth’s surface ad the one we live in
Troposphere
What is the layer that contains the ozone layer which protects earth from harmful UV rays from the sun?
Stratosphere
What is the coldest layer of all four. This layer burns up many meteors due to friction.
Mesosphere
This layer has the highest temperature and lowest pressure
Thermosphere