Layers of Earth's Atmosphere

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Questions and Answers

What is the layer of the Earth's atmosphere closest to the Earth's surface?

  • Mesosphere
  • Troposphere (correct)
  • Stratosphere
  • Thermosphere

Which layer of the Earth's atmosphere contains a mix of nitrogen, oxygen, and carbon dioxide?

  • Mesosphere
  • Thermosphere
  • Stratosphere
  • Troposphere (correct)

Which layer of the Earth's atmosphere gradually fades away into space?

  • Exosphere (correct)
  • Stratosphere
  • Thermosphere
  • Mesosphere

At which region of the Earth is the troposphere highest in height?

<p>Equator (D)</p> Signup and view all the answers

What is the main function of the troposphere in relation to living organisms on Earth?

<p>Providing air for breathing and photosynthesis (A)</p> Signup and view all the answers

Which layer of the Earth's atmosphere is where the sun's warmth helps sustain life on Earth?

<p>Troposphere (A)</p> Signup and view all the answers

Which layer of the Earth's atmosphere is responsible for enabling global communication and travel?

<p>Troposphere (C)</p> Signup and view all the answers

Why does the air temperature decrease as one goes higher in the troposphere?

<p>As a result of the heat transfer from the Earth's surface (D)</p> Signup and view all the answers

Which atmospheric layer allows for most of the world's aviation to take place?

<p>Troposphere (A)</p> Signup and view all the answers

What is a unique feature of the stratosphere in contrast to the troposphere?

<p>It has virtually no clouds or weather (B)</p> Signup and view all the answers

Which layer of the atmosphere is affected by human activity due to ozone depletion concerns?

<p>Stratosphere (C)</p> Signup and view all the answers

What does the ionosphere in the mesosphere allow for due to its unique properties?

<p>Bouncing communication signals for satellites (C)</p> Signup and view all the answers

What is the upper most layer of the Earth's atmosphere?

<p>Exosphere (B)</p> Signup and view all the answers

Which layer of the atmosphere contains a mix of nitrogen, oxygen, and carbon dioxide?

<p>Troposphere (B)</p> Signup and view all the answers

At what height does the troposphere extend up to from the Earth's surface?

<p>7.5 miles (D)</p> Signup and view all the answers

Which layer of the atmosphere is responsible for enabling communication all around the world?

<p>Stratosphere (A)</p> Signup and view all the answers

What is a key function of the mesosphere in relation to Earth's atmosphere?

<p>Protecting Earth from meteors (D)</p> Signup and view all the answers

Which layer of the atmosphere gradually fades away into space?

<p>Stratosphere (D)</p> Signup and view all the answers

What is a distinguishing characteristic of the thermosphere compared to other layers of the atmosphere?

<p>Air is extremely thin (D)</p> Signup and view all the answers

What is the primary reason for the temperature decrease in the troposphere as one goes higher in elevation?

<p>Reduction in heat transfer from Earth's surface (C)</p> Signup and view all the answers

Which layer of the Earth's atmosphere serves as a protective shield against harmful ultraviolet radiation?

<p>Stratosphere (C)</p> Signup and view all the answers

What makes the mesosphere the coldest layer of the atmosphere?

<p>Inability to trap heat from Earth (C)</p> Signup and view all the answers

Where do all Earth-orbiting satellites reside within the layers of the atmosphere?

<p>Thermosphere (B)</p> Signup and view all the answers

Why is the ionosphere important for communication using satellites located in this layer?

<p>To reflect and modify radio waves (B)</p> Signup and view all the answers

Which feature distinguishes the stratosphere from the troposphere in terms of temperature change?

<p>Temperature increases with elevation (B)</p> Signup and view all the answers

What unique characteristic of the thermosphere allows it to be a suitable location for the International Space Station?

<p>&quot;Thinness&quot; of the layer (B)</p> Signup and view all the answers

What is the critical role played by most clouds in the troposphere which justifies their presence?

<p>Generation of most of Earth's weather (D)</p> Signup and view all the answers

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