Environmental Science 2

Atmosphere

Mixture of gases that surround our planet

Nitrogen

Most abundant gas in the atmosphere at 78%. Cannot be used directly.

Sunlight

Its radiation is very harmful. (UV rays)

Composition of the Atmosphere

Nitrogen, Oxygen. Helium, Argon, Water Vapor, Carbon Dioxide

Ozone Gas

50km form Earth. Located in the stratosphere. Protects us from UV rays.

Water Vapor

Found in all kinds of precipitation. The amount of carbon decreases from the equator to the pole. Commonly found in water bodies.

Dust Particles

Found in the air specifically in the lower levels of the atmosphere. Particles in the form of sand, pollen and ash

Atmosphere

Without it, Earth would be inhabitable.

Troposphere

The lowest layer of the atmosphere. This is where we live and where weather occurs, turbulence happens, and clouds form

Stratosphere

Ideal layer for flying. This is where the ozone layer is

Mesosphere

53 miles above our planet. Protects us from meteors and falling stars.

Thermosphere

Satellites orbit here. Radio communication and Aurora borealis occurs here

Exosphere

Uppermost layer, gasses are sparse almost no gravity

Barometer

Instrument that measure atmospheric pressure

Evangelista Toricelli

Discovered the barometer in 1643