GEOLOGY

EARTH SCIENCE

CLIMATE AND ENVIRONMENTAL CHANGE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Greenhouse gases are important to our planet’s survival because ____
A
They create a natural cooling effect that keeps us from burning up.
B
They create oxygen which we need to breathe.
C
They fuel the cars we drive.
D
They keep our earth warm enough to sustain life.
Explanation: 

Detailed explanation-1: -’Greenhouse gases’ are crucial to keeping our planet at a suitable temperature for life. Without the natural greenhouse effect, the heat emitted by the Earth would simply pass outwards from the Earth’s surface into space and the Earth would have an average temperature of about-20°C.

Detailed explanation-2: -Greenhouse gas molecules in the atmosphere absorb light, preventing some of it from escaping the Earth. This heats up the atmosphere and raises the planet’s average temperature.

Detailed explanation-3: -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. Just as too little greenhouse gas makes Earth too cold, too much greenhouse gas makes Earth too warm.

Detailed explanation-4: -Carbon dioxide is widely reported as the most important anthropogenic greenhouse gas because it currently accounts for the greatest portion of the warming associated with human activities.

Detailed explanation-5: -The greenhouse effect supports and promotes a life. It is no surprise that human existence and life are only possible at a certain temperature. Protection from Danger. Benefits of Greenhouse Gases for Photosynthesis. Global Warming. Increasing Water Levels. Destruction of Marine Life. 31-Aug-2019

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