Q. By international convention, which line marks the outermost boundary of the Earth’s atmosphere?

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Q. What would have been the average temperature of Earth without greenhouse gases?

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Q. Ever since the industrial revolution, by how much has the average temperature of the Earth increased?

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Q. How much of the sun’s radiation energy is absorbed by the greenhouse gases to warm the planet?

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Q. What is the emissivity of the Earth’s surface?

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Q. The Earth is still said to be in the “ice age” period.

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Q. In which layer of the ionosphere does the International Space Station orbit?

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Q. Which type of clouds is found in the highest altitude of the Earth’s atmosphere?

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Q. What is the significance of the ionosphere?

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Q. Troposphere contains nearly 80% of the atmosphere by mass.

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Q. What does the term “overcast” define?

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Q. Twinkling of stars is otherwise known as scintillation.

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Q. What does ITCZ stand for corresponding to global wind patterns?

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Q. By how much has atmospheric carbon dioxide concentration increased ever since the Industrial Revolution?

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Q. Which is the most abundant greenhouse gas in the atmosphere?

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Q. What does the phrase “anthropogenic CO₂ emissions” mean?

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Q. Which of the following is the largest sink for carbon dioxide gas?

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Q. Apart from Earth, which other celestial body(s) exhibits greenhouse gas effect?

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Q. Which of the following bodies in the solar system has anti-greenhouse effect?

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Q. Which of the following radiations of the sun do greenhouse gases trap?

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