Core (Universal)Question 1 of 240
Why is the stratospheric ozone layer important to life on Earth?
a.It traps heat and keeps the planet warm
b.It absorbs harmful ultraviolet (UV) radiation from the sun
c.It produces the oxygen that people breathe
d.It reflects radio signals back to the surface
Explanation
The ozone layer in the stratosphere absorbs most of the sun's harmful ultraviolet (UV) radiation, which protects humans, animals, and plants. It does not warm the planet like greenhouse gases do, produce breathable oxygen, or reflect radio signals. Protecting this layer is the main reason Section 608 limits the release of ozone-depleting refrigerants.
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