Layers
Mixture of gases around the Earth.
Atmosphere
What layer is closest to us?
Troposphere
Provides what we breathe.
Air
The measure of the force with which air molecules push on a surface
Air Pressure
Water can be found in the atmosphere as what? These form clouds.
Liquid Water
What layer is 2nd closest to us?
Stratosphere
Protects us from harmful what?
Solar Radiation
A mixture of gases that surrounds a planet or moon.
Atmosphere
What holds the atmosphere around the Earth?
Gravity
What layer is 3rd closest to us?
Mesosphere
Controls what of the Earth?
Temperature
The layer of the atmosphere at an altitude of 15 to 40 km in which ozone absorbs ultraviolet solar radiation
Ozone Layer
Name the things the atmosphere is composed of and their percent.
Nitrogen - 78%
Oxygen - 21%
Other gases -1%
What layer is furthest away from us?
Thermosphere?
Earth's temperature would be very what without the atmosphere?
Low
The greenhouse effect
The warming of the surface and lower atmosphere of Earth that occurs when water vapor, carbon dioxide, and other gases absorb and reradiate thermal energy
What are the 3 functions of the atmosphere?
1. Protect living things from harmful UV rays
2. Keeps earth warm enough for life to exist
3. Liquid water is present with temperature ranges
1. Troposphere
2. Stratosphere
3. Mesosphere
4. Thermosphere
Earth remains warm because of what?
Mesosphere
The layer of the atmosphere between the stratosphere and the thermosphere and in which temperature decreases as altitude increases