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Pollution and its Effects on Climate and Environment — Biology STD 10 — Question

ICSE BoardEnglish MediumSTD 10BiologyPollution and its Effects on Climate and Environment2 Marks
Question
Given below are two incorrect statements. Rewrite the correct statements:
(i) Ozone layer depletion is only caused by the release of Nitrogen monoxide (NO) into the atmosphere.
(ii) Ozone layer depletion has no impact on human health.
✓

Answer

(i) Ozone layer depletion is caused by the release of chlorofluorocarbons (CFCs), nitrogen monooxide, and other ozone-depleting substances into the atmosphere like carbon tetrachloride, methylene chloride, etc.
(ii) Ozone layer depletion can lead to an increase in harmful ultraviolet (UV) radiation reaching the Earth's surface, which can have adverse effects on human health, such as skin cancer, cataracts, and immune system suppression.

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