The gas that is most useful in protecting humans against solar radiation is?

  • A chlorine
  • B ozone
  • C carbon (IV) oxide
  • D hydrogen sulphide

The correct answer is B. ozone

The ozone layer in the stratosphere absorbs a portion of the radiation from the sun, preventing it from reaching the planet's surface.

Most importantly, it absorbs the portion of UV light called UVB.

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