Carbon Dioxide and Climate Change
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Questions and Answers

Which of the following is true about the greenhouse effect?

  • It has no impact on Earth's temperature
  • It makes Earth a blue and green planet
  • It causes Earth to be covered in ice
  • It is caused by CO2 and other greenhouse gases (correct)

What does the picture on the left show?

  • Earth without the greenhouse effect (correct)
  • Earth with increased CO2 levels
  • Earth with extreme weather conditions
  • Earth with decreased CO2 levels

What happens when CO2 levels in the atmosphere increase?

  • The temperature of Earth becomes unpredictable
  • The temperature of Earth remains the same
  • The temperature of Earth increases (correct)
  • The temperature of Earth decreases

What role does the ocean play in the carbon cycle?

<p>It releases CO2 into the atmosphere (D)</p> Signup and view all the answers

What is NASA's Orbiting Carbon Observatory 2 (OCO-2) designed to measure?

<p>Greenhouse gases in Earth's atmosphere (A)</p> Signup and view all the answers

What is the main goal of NASA's research satellites?

<p>To understand the carbon cycle (D)</p> Signup and view all the answers

What does the greenhouse effect do to Earth's temperature?

<p>It makes Earth warmer (A)</p> Signup and view all the answers

What would Earth look like without the greenhouse effect?

<p>An ice ball (C)</p> Signup and view all the answers

What happens when CO2 levels in the atmosphere increase even more?

<p>The temperature of Earth increases (B)</p> Signup and view all the answers

What causes CO2 levels in the atmosphere to increase?

<p>The greenhouse effect (B)</p> Signup and view all the answers

Which gas traps heat close to Earth and helps the planet hold onto some of the heat it gets from the Sun?

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

What happens when there is too much carbon dioxide in the atmosphere?

<p>Earth's temperature warms up too much (C)</p> Signup and view all the answers

What do NASA research satellites like OCO-2 and OCO-3 study?

<p>How carbon moves around the planet (D)</p> Signup and view all the answers

What is the role of plants in the carbon cycle?

<p>They absorb carbon dioxide and release oxygen (A)</p> Signup and view all the answers

How do animals contribute to the carbon cycle?

<p>They absorb oxygen and release carbon dioxide (C)</p> Signup and view all the answers

What happens if there are big increases in carbon dioxide in our atmosphere?

<p>Earth's climate is negatively affected (D)</p> Signup and view all the answers

What is the main function of greenhouse gases?

<p>To trap heat from the Sun (A)</p> Signup and view all the answers

What human activities are changing the balance of carbon in the air and in plants and the ocean?

<p>Burning fossil fuels and cutting down forests (C)</p> Signup and view all the answers

What would happen if there were no greenhouse gases in Earth's atmosphere?

<p>The Sun's heat would escape into space (C)</p> Signup and view all the answers

What role does carbon dioxide play in the greenhouse effect?

<p>It helps Earth hold onto the heat it receives from the Sun (A)</p> Signup and view all the answers

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