Layers of the Atmosphere

Which layer of the atmosphere contains most of the atmosphere's mass?

• Troposphere

• Stratosphere

• Mesosphere

• Thermosphere

In which layer of the atmosphere does temperature increase with altitude?

• Troposphere

• Stratosphere

• Mesosphere

• Thermosphere

What is the primary function of the ozone layer in the stratosphere?

• Absorbs and scatters ultraviolet solar radiation

• Burns up meteorites

• Contains charged particles

• Supports weather phenomena

Which layer of the atmosphere is the coldest?

• Troposphere

• Stratosphere

• Mesosphere

• Thermosphere

At what altitude does the thermosphere start?

• 8 to 15 kilometers

• 50 to 85 kilometers

• 85 kilometers

• 600 kilometers