Global Warming and Greenhouse Effect
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Questions and Answers

What is the average temperature on Venus?

  • 300° C
  • 0°F
  • 457° C (correct)
  • 188° C
  • Which of the following planets has a huge temperature difference between day and night?

  • Venus
  • Earth
  • Mars (correct)
  • Pluto
  • What is the fraction of solar radiation that is reflected known as?

  • Greenhouse effect
  • Albedo (correct)
  • Atmospheric modification
  • Global warming
  • How much would Earth's average atmospheric temperature be without any greenhouse gases?

    <p>-18° C</p> Signup and view all the answers

    Which of the following gases contributes the most towards the greenhouse effect?

    <p>Water vapor</p> Signup and view all the answers

    What is the extent of contribution towards greenhouse effect for methane (CH4)?

    <p>4–9%</p> Signup and view all the answers

    What has been the increase in atmospheric concentration of CO2 since 1750?

    <p>31%</p> Signup and view all the answers

    What is the main source of the increase in carbon dioxide in the atmosphere?

    <p>Combustion of fossil fuels</p> Signup and view all the answers

    What is the primary source of methane release?

    <p>Coal mining, landfills, and agriculture</p> Signup and view all the answers

    How is nitrous oxide primarily produced?

    <p>Cars, fossil fuels used for heat and electricity, and agriculture</p> Signup and view all the answers

    What is the significance of an increase in tropospheric ozone?

    <p>It can contribute to raising global temperature</p> Signup and view all the answers

    What method is used to collect historical temperature data?

    <p>Tree rings, ice volume changes, and fossil pollen analysis</p> Signup and view all the answers

    What observed correlation is used to record global temperatures?

    <p>Correlation between the world’s ice cover and concentration of the isotope O18 in seafloor sediments</p> Signup and view all the answers

    What does an increase in the concentration of O18 in marine sediments indicate?

    <p>Cold climate and more water locked up in glaciers and ice</p> Signup and view all the answers

    What has happened to snow cover and ice extent since 1960?

    <p>It has decreased by about 10%</p> Signup and view all the answers

    What has been the increase in atmospheric concentration of methane since 1750?

    <p>151%</p> Signup and view all the answers

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