4 Layers of the atmosphere

• They are the troposphere, stratosphere mesosphere and thermosphere.

Troposphere Layer 1

• Atmospheric layer that we live in

• Short-term weather• Long-term climate• It’s elevation ranges

from 0 to 17 km

Composition of Air

• There are many different types of gases in the atmosphere

• They include nitrogen, oxygen, argon, carbon dioxide and other noble gasses

• Nitrogen is the most abundant - 78%

Stratosphere Layer 2

• This layer contains the ozone layer, which protects us from harmful UV radiation

• 17 km to 48 km

Mesosphere Layer 3

• Meteors burn up when reentering the atmosphere

• It’s elevation ranges from 48 to 100 km

Thermosphere Layer 4

• Highest layer of the atmosphere

• Northern Lights occur here (aurora borealis)

• Temperature in 1000’s of degrees

• It’s height ranges from 100 to 400 km