OBJECTIVE LIFE SCIENCE
ECOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The same temperature
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a little cooler than it is now
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. Too cold to live
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a little warmer than it is now
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Detailed explanation-1: -Without any greenhouse gases, Earth would be an icy wasteland. Greenhouse gases keep our planet livable by holding onto some of Earth’s heat energy so that it doesn’t all escape into space. This heat trapping is known as the greenhouse effect.
Detailed explanation-2: -The survival on earth without greenhouse gases is not possible because in absence of the greenhouse gases like CO2, water vapour, methane etc., the overall temperature of the earth will go down and it will become a frozen ball of ice.
Detailed explanation-3: -According to scientists, the average temperature of Earth would drop from 14˚C (57˚F) to as low as –18˚C (–0.4˚F), without the greenhouse effect. Some greenhouse gases come from natural sources, for example, evaporation adds water vapor to the atmosphere.
Detailed explanation-4: -In the absence of greenhouse gases, the average temperature of the Earth will decrease drastically, making it uninhabitable. As a result, life on Earth would be impossible.