Multiple choice

Consider the following statements:

  1. Ozone is found mostly in the stratosphere

  2. Ozone layer lies 55-75 km above the surface of the earth

  3. Ozone absorbs ultraviolet radiation from the sun

  4. Ozone layer has no significance for life on the earth

Which of the above statements is/are correct?

  1. 1 and 3

  2. 2 and 4

  3. 2 and 3

  4. 1 and 4
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Ozone is primarily found in the stratosphere (15-35 km altitude) and is vital for life because it absorbs harmful ultraviolet (UV) radiation. Statement 2 is incorrect because the ozone layer is lower than 55 km, and statement 4 is false because ozone is essential for survival.

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