Carbon Dioxide Levels and Sources Quiz

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Questions and Answers

Which layer of the atmosphere is known as the ionosphere?

  • Exosphere
  • Mesosphere
  • Stratosphere
  • Thermosphere (correct)

In which layer of the atmosphere do temperatures often reach 2000 degrees Celsius or more?

  • Mesosphere
  • Thermosphere (correct)
  • Troposphere
  • Stratosphere

Which layer of the atmosphere extends from the upper limit of the thermosphere into space?

  • Exosphere (correct)
  • Mesosphere
  • Stratosphere
  • Troposphere

What is the main reason for the extremely low density in the exosphere?

<p>Lack of gravitational force (A)</p> Signup and view all the answers

Which layer of the atmosphere contains the layer where compression results in denser air near the base?

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

What is the consequence of compressibility that leads to a nonlinear trend in both pressure and atmospheric density with altitude?

<p>Change in air density (A)</p> Signup and view all the answers

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

<p>Absorbing harmful UV radiation from the Sun (C)</p> Signup and view all the answers

Why do airplanes and weather balloons often fly in the lower part of the stratosphere?

<p>For its stability and lack of weather disturbances (B)</p> Signup and view all the answers

Which layer of the atmosphere is responsible for meteors burning up and creating shooting stars?

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

What is the temperature trend with increasing altitude in the mesosphere?

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

What happens when oxygen molecules (O2) in the stratosphere absorb UV radiation?

<p>They dissociate to give atomic oxygen (O) (C)</p> Signup and view all the answers

What is the top of the stratosphere known as?

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

Which gas has a residence time of around 10 years and is known for its high potential for greenhouse warming?

<p>Methane (CH4) (A)</p> Signup and view all the answers

What is a significant contributor to climate change and responsible for a portion of global warming?

<p>Atmospheric chemical reactions (B)</p> Signup and view all the answers

Which process can increase ozone concentration near Earth's surface in polluted air?

<p>Chemical reactions in polluted air (D)</p> Signup and view all the answers

What is the main source of carbon dioxide emissions due to human activities?

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

Which natural process can lead to seasonal oscillations in carbon dioxide concentrations?

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

What is the primary role of ozone in the stratosphere?

<p>Absorbing harmful ultraviolet (UV) radiation (B)</p> Signup and view all the answers

What is the function of carbon dioxide in the Earth's atmosphere?

<p>Captures heat, leading to the greenhouse effect (B)</p> Signup and view all the answers

Which gas is known for its low reactivity and unique properties?

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

What is the main source of Argon in the atmosphere?

<p>Radioactive decay of potassium in rocks (D)</p> Signup and view all the answers

Which gas has a residence time of around 150 years in the atmosphere?

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

How do variable gases differ from noble gases?

<p>Variable gases are highly reactive, while noble gases are not reactive (D)</p> Signup and view all the answers

Which of the following gases contributes to climate change?

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

What is the residence time of water vapor in the atmosphere?

<p>10 days (D)</p> Signup and view all the answers

Which of the following is true about water vapor?

<p>It is the gaseous phase of water (D)</p> Signup and view all the answers

Where is the atmospheric concentration of water vapor the highest?

<p>Near ocean surface in tropics (C)</p> Signup and view all the answers

What is the typical lifespan of aerosols in the atmosphere?

<p>Days to weeks (A)</p> Signup and view all the answers

Which primary source contributes to aerosols in the atmosphere?

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

Why do aerosols act as cloud condensation nuclei?

<p>They provide a surface for water vapor to condense on (A)</p> Signup and view all the answers

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