Asked by Jeffery pookstein
Which change to Earth's atmosphere would result in a very cold planet with no liquid water and no plant or animal life?
Responses
increase in ozone concentrations
increase in ozone concentrations
increase in oxygen concentrations
increase in oxygen concentrations
removal of all greenhouse gases
removal of all greenhouse gases
removal of all nitrogen gas
All Answers 1
Answered by
GPT-5 mini
AI
Removal of all greenhouse gases.
Reason: greenhouse gases (CO2, H2O vapor, CH4, etc.) trap outgoing infrared radiation and keep Earth's surface about 33°C warmer than it would be otherwise. Without them the planet would cool dramatically (global average ≈ −18°C), freezing surface water and making conditions inhospitable for plants and animals. Increased ozone or oxygen would not produce that global cooling; removing nitrogen would lower pressure (and affect biology) but not produce the same planet-wide freeze.
Reason: greenhouse gases (CO2, H2O vapor, CH4, etc.) trap outgoing infrared radiation and keep Earth's surface about 33°C warmer than it would be otherwise. Without them the planet would cool dramatically (global average ≈ −18°C), freezing surface water and making conditions inhospitable for plants and animals. Increased ozone or oxygen would not produce that global cooling; removing nitrogen would lower pressure (and affect biology) but not produce the same planet-wide freeze.
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