Layers of the Atmosphere

Front

What gas makes up 21% of the atmosphere?

Back

Oxygen is the gas that makes up 21% of the Earth's atmosphere.

Front

What enables the atmosphere of Earth to stay in place?

Back

Gravity is the force that keeps the atmosphere of Earth in place.

Front

Which layer of the atmosphere contains most of the ozone?

Back

The stratosphere is the layer of the atmosphere that contains most of the ozone.

Front

What causes the temperature to increase in the stratosphere?

Back

Ozone causes the temperature to increase in the stratosphere by absorbing ultraviolet (UV) radiation.

Front

What is the function of the ozone layer?

Back

The ozone layer blocks UV rays from getting to Earth, protecting living organisms.

Front

What are the main layers of the atmosphere?

Back

The main layers of the atmosphere are the troposphere, stratosphere, mesosphere, thermosphere, and exosphere.

Front

What is the troposphere?

Back

The troposphere is the lowest layer of the atmosphere where weather occurs and where we live.

Front

What is the mesosphere?

Back

The mesosphere is the layer of the atmosphere above the stratosphere, where temperatures decrease with altitude.

Front

What is the thermosphere?

Back

The thermosphere is the layer of the atmosphere above the mesosphere, characterized by high temperatures and the presence of ionized gases.

Front

What is the exosphere?

Back

The exosphere is the outermost layer of the atmosphere, where the atmosphere transitions into outer space.