CBSE Class 10 Science Question 15 of 16

Our Environment — Question 1

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Question 1

What is ozone and how does it affect any ecosystem?

Answer

Ozone is formed when an oxygen molecule (O2) combines with another oxygen atom (O). Thus Ozone (O3) is a molecule formed by three atoms of oxygen.

Ozone is present at the higher levels of the atmosphere and it shields the surface of the earth from ultraviolet (UV) radiation of the Sun. Therefore, it helps to protect all ecosystems/organisms from highly damaging radiations that can cause problems like skin cancer and cataract in humans and potential damage to some marine organisms and plants. Ozone also helps to maintain the temperature of earth.