Biology for IGCSE & O level - Human Influences On Ecosystems (Section 5 - No. 47)
What is the role of greenhouse gases in the Earth's atmosphere?
To reflect solar radiation back into space.
To absorb and re-emit infrared radiation, warming the Earth.
To block harmful UV radiation from reaching the Earth's surface.
To cool down the Earth's surface.
Explanation
Greenhouse gases trap infrared radiation and help to warm the Earth.
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