Exploring Earth's Atmosphere

What is the layer of air surrounding our planet called?

• Atmosphere

• Exosphere

• Stratosphere

• Troposphere

Which layer of the atmosphere is the lowest?

• Stratosphere

• Mesosphere

• Troposphere

• Thermosphere

In which layer does almost all weather occur?

• Stratosphere

• Mesosphere

• Thermosphere

• Troposphere

What is the purpose of the ozone layer?

• To protect living organisms from harmful ultraviolet radiation from the sun.

• To block all forms of radiation from the sun.

• To regulate the Earth's temperature.

• To provide oxygen for breathing.

Which layer is known as outer space?

• Mesosphere

• Troposphere

• Exosphere

• Stratosphere

What is the hottest layer of the atmosphere?

• stratosphere

• mesosphere

• troposphere

• thermosphere

Which layer is the coldest?

• Stratosphere

• Troposphere

• Thermosphere

• Mesosphere

What does the stratosphere contain that protects us from the sun?

• Troposphere

• Mesosphere

• Stratospheric clouds

• Ozone layer

What is the main job of the atmosphere?

• To provide oxygen for breathing

• To create weather patterns only

• To serve as a barrier against space debris

• The main job of the atmosphere is to protect life on Earth and regulate climate.

Which layer is closest to Earth?

• thermosphere

• troposphere

• stratosphere

• mesosphere