Multiple choice

If the ozone layer is thinned then...

  1. life on earth will be burned up

  2. the earth will heat up due to global warming

  3. there will be too many greenhouse gases let into the air

  4. there will be an increase in radiation reaching Earth
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The ozone layer filters out harmful ultraviolet (UV) radiation. If it thins, more of this radiation reaches the Earth's surface, increasing the risk of biological damage.

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