What is the ozone layer and why is it important?

A A layer of oxygen at ground level

B A layer of ozone in the stratosphere that absorbs harmful UV radiation

C A type of cloud formation

D A layer of nitrogen in the atmosphere

✓ Correct Answer: Option B

The ozone layer is a region in Earth's stratosphere containing high concentrations of ozone (O3) that absorbs most of the Sun's harmful ultraviolet radiation, protecting life on Earth.

💡 Why is B) the correct answer?

The correct answer to the question "What is the ozone layer and why is it important?" is Option B: A layer of ozone in the stratosphere that absorbs harmful UV radiation.

The other options — A) A layer of oxygen at ground level, C) A type of cloud formation, D) A layer of nitrogen in the atmosphere — are incorrect for this Everyday Science question. As explained above: The ozone layer is a region in Earth's stratosphere containing high concentrations of ozone (O3) that absorbs most of the Sun's harmful ultraviolet radiation, protecting life on Earth.

📚 About This Everyday Science Practice Question

This 2-level Everyday Science question from the Environmental Science topic is part of One Paper Preparation's free exam preparation library. Each question includes the correct answer and a detailed explanation to help you understand the underlying concept, not just memorize the answer.

How to use this page: Read the question above, consider all four options (A through D), then check the highlighted correct answer and explanation. For active timed practice, start a free Everyday Science practice test or use flashcards for spaced repetition review.

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What is the ozone layer and why is it important?

✓ Correct Answer: Option B

📚 About This Everyday Science Practice Question

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