Earth Systems

The Earth system that contains all living things is the

What are the four systems in which scientis divide the earth to better understan planet Earth?

The mixture of gases that forms around the Earth due to gravity in layers is called the

Which are the two main gases that compose the atmosphere?

• Nitrogen (N)

• Oxygen (O)

• Carbon dioxide (CO₂)

• Argon (Ar)

• Ozone (O₃)

It is the layer of the atmosphere that contains most of its mass.

• Troposphere

• Stratosphere

• Mesosphere

• Thermosphere

• Exosphere

This is the layer of the atmosphere where we can find the ozone that protects Earth from Suns radiation and acts like sunscreen for the biosphere

• Troposphere

• Stratosphere

• Mesosphere

• Thermosphere

• Exosphere

The lowest density of gas molecules is found in this layer.

• Troposphere

• Stratosphere

• Mesosphere

• Thermosphere

• Exosphere

Label the Layers of the Atmosphere.

a

b

c

d

e

Atmosphere

Biosphere

Troposphere

Hydroshpere

Mesophere

Stratophere

Airsphere

Thermosphere

Exosphere

The system containing all Earth's water is called the

How do scientists call the natural locations where water is store?