AtmosphereWhich one of the following is true?ans.Shorter the lifetime of a GHG in the atmosphere, higher the contribution of that GHG in global warming.For a given GHG, higher the value of GWP, higher the warming efficiency.For a given GHG, higher the value of GWP, higher the contribution in global warming.For a given GHG, lower the value of GWP, higher the warming efficiency. Previous Marked for Review Next
Question
AtmosphereWhich one of the following is true?ans.Shorter the lifetime of a GHG in the atmosphere, higher the contribution of that GHG in global warming.For a given GHG, higher the value of GWP, higher the warming efficiency.For a given GHG, higher the value of GWP, higher the contribution in global warming.For a given GHG, lower the value of GWP, higher the warming efficiency. Previous Marked for Review Next
Solution
The correct statement is: "For a given GHG, higher the value of GWP, higher the contribution in global warming."
Explanation:
GHG stands for Greenhouse Gas, which are gases in the Earth's atmosphere that trap heat. They let sunlight pass through the atmosphere, but they prevent the heat that the sunlight brings from leaving the atmosphere. The primary greenhouse gases in Earth's atmosphere are water vapor, carbon dioxide, methane, nitrous oxide, and ozone.
GWP stands for Global Warming Potential, which is a measure of how much heat a greenhouse gas traps in the atmosphere up to a specific time horizon, relative to carbon dioxide. It measures the total energy that a gas absorbs over a particular period of time (usually 100 years), compared to carbon dioxide.
Therefore, the higher the GWP of a greenhouse gas, the more it warms the Earth compared to carbon dioxide over that time period. So, it contributes more to global warming.
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