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Greenhouse Gases Essentials

CO2, methane, and the greenhouse effect. Ideal for competitive exams and environmental science prep.

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Greenhouse Gases Essentials
QUESTION NO 01
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The main greenhouse gas from fossil fuel burning is?

Answer: Carbon dioxide (CO2)
CO2 is the dominant long-lived GHG from combustion.
Shahzad Mahota
Shahzad Mahota @shahzad-mahota
302 Quizzes
2930 Questions
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QUESTION NO 02
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The greenhouse effect warms Earth by?

Answer: Trapping outgoing infrared radiation
GHGs absorb and re-emit heat toward the surface.
Shahzad Mahota
Shahzad Mahota @shahzad-mahota
302 Quizzes
2930 Questions
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QUESTION NO 03
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Global warming refers to?

Answer: Long-term rise in Earth’s average temperature
It is a multi-decadal climate trend.
Shahzad Mahota
Shahzad Mahota @shahzad-mahota
302 Quizzes
2930 Questions
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QUESTION NO 04
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Which sector is a major source of methane?

Answer: Livestock and wetlands (among others)
Methane also comes from fossil fuels and waste.
Shahzad Mahota
Shahzad Mahota @shahzad-mahota
302 Quizzes
2930 Questions
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QUESTION NO 05
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Sea-level rise is driven mainly by?

Answer: Thermal expansion and melting ice
Warming oceans expand; glaciers/ice sheets melt.
Shahzad Mahota
Shahzad Mahota @shahzad-mahota
302 Quizzes
2930 Questions
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QUESTION NO 06
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The Paris Agreement aims to limit warming well below?

Answer: 2°C above pre-industrial levels (pursuing 1.5°C)
It is a key international climate treaty.
Shahzad Mahota
Shahzad Mahota @shahzad-mahota
302 Quizzes
2930 Questions
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QUESTION NO 07
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Climate mitigation means?

Answer: Reducing emissions and enhancing sinks
Mitigation tackles the causes of climate change.
Shahzad Mahota
Shahzad Mahota @shahzad-mahota
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2930 Questions
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QUESTION NO 08
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Climate adaptation means?

Answer: Adjusting to actual/expected climate impacts
Examples: flood defenses, drought-resistant crops.
Shahzad Mahota
Shahzad Mahota @shahzad-mahota
302 Quizzes
2930 Questions
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QUESTION NO 09
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Which gas depletes stratospheric ozone (not a primary GHG focus)?

Answer: CFCs (chlorofluorocarbons)
CFCs damaged the ozone layer; Montreal Protocol addressed them.
Shahzad Mahota
Shahzad Mahota @shahzad-mahota
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2930 Questions
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QUESTION NO 10
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Carbon sequestration stores carbon in?

Answer: Forests, soils, oceans, or engineered sinks
Natural and technological sinks remove CO2 from air.
Shahzad Mahota
Shahzad Mahota @shahzad-mahota
302 Quizzes
2930 Questions
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Shahzad Mahota

@shahzad-mahota

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