Atmospheric Layers and Their Properties

This video tutorial from MooMooMath and Science explains the Earth's atmosphere, which is divided into four layers: the troposphere, stratosphere, mesosphere, and thermosphere. Each layer has distinct characteristics, such as temperature variations and specific roles, like weather occurrence in the troposphere and ultraviolet protection by the ozone layer in the stratosphere. The mesosphere is the coldest layer, protecting Earth from space debris, while the thermosphere is the hottest, housing the ionosphere and exosphere. The video concludes with a recap of these layers.

What percentage of Earth's atmosphere is composed of nitrogen?

• 1%

• 78%

• 50%

• 21%

In which layer of the atmosphere does weather primarily occur?

• Stratosphere

• Thermosphere

• Troposphere

• Mesosphere

What is the temperature range in the troposphere?

• -50 to 20°C

• -90 to 0°C

• -20 to 50°C

• 0 to 100°C

Which layer contains the ozone layer?

• Mesosphere

• Thermosphere

• Stratosphere

• Troposphere

Why does the temperature increase in the stratosphere?

• Because of the high altitude

• Because of the ozone layer absorbing UV rays

• Due to the presence of carbon dioxide

• Due to the presence of water vapor

What is the coldest layer of the atmosphere?

• Mesosphere

• Troposphere

• Thermosphere

• Stratosphere

What role does the mesosphere play in protecting Earth?

• It reflects radio waves

• It contains the ozone layer

• It burns up space debris

• It absorbs UV rays

Which layer is known for having the highest temperatures?

• Mesosphere

• Stratosphere

• Troposphere

• Thermosphere

What is the ionosphere known for?

• Being the coldest layer

• Reflecting radio waves

• Containing the ozone layer

• Burning up space debris

Where are satellites primarily located?

• Troposphere

• Stratosphere

• Mesosphere

• Exosphere