Biology for IGCSE & O level - Human Influences On Ecosystems (Section 1 - No. 35)
Which of the following best describes the role of the ozone layer?
Trapping heat and warming the atmosphere.
Absorbing harmful ultraviolet (UV) radiation from the sun.
Releasing carbon dioxide into the atmosphere.
Reflecting visible light back into space.
Explanation
The ozone layer protects Earth from harmful UV radiation.
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