Earth's Atmosphere

Front

What is the layer above the stratosphere?

Back

Mesosphere

Front

Which layer of the atmosphere is the densest?

Back

Troposphere

Front

How many layers is the atmosphere divided into?

Back

4 or 5

Front

In which layer of the atmosphere is the ozone concentrated?

Back

Stratosphere

Front

What happens to the temperature as altitude increases in the Troposphere?

Back

The temperature decreases.

Front

What is the lowest layer of the atmosphere called?

Back

Troposphere

Front

What is the layer of the atmosphere where weather occurs?

Back

Troposphere

Front

What is the layer above the mesosphere?

Back

Thermosphere

Front

What is the main gas found in the Earth's atmosphere?

Back

Nitrogen (approximately 78%)

Front

What is the role of the ozone layer?

Back

To absorb and protect against harmful ultraviolet (UV) radiation from the sun.