Q. Consider the following statements:
1.Chlorofluorocarbons (CFCs) are a major gas which contributes to rapid depletion of the ozone layer and warming climate.
2.Ozone formed in the stratosphere is called bad ozone, while ozone formed in the troposphere is called good ozone.
3.The Indian government has brought the Indian Cooling Action Plan (ICAP) to reduce the overall refrigerant demand by 25% to 30% by 2037-38.
4.India is signatories to both Vienna Convention for the Protection of the Ozone layer and the Montreal Protocol on substances that deplete the Ozone layer.
How many of the statements given above are correct?
Explanation –
Statements 1, 3 and 4 are correct. CFCs are well-known for their role in depleting the ozone layer by releasing chlorine atoms in the stratosphere, which break down ozone molecules. Additionally, CFCs are potent greenhouse gases that contribute to global warming. The India Cooling Action Plan (ICAP) aims to reduce refrigerant demand by 25% to 30% by 2037-38 as part of its broader goals to enhance energy efficiency and promote sustainable cooling technologies. India is a signatory to both the Vienna Convention and the Montreal Protocol, which are key international agreements aimed at protecting the ozone layer by phasing out ozone-depleting substances.
Statement 2 is incorrect. Ozone in the stratosphere is considered “good” because it forms a protective layer that absorbs harmful ultraviolet radiation from the sun. Conversely, ozone in the troposphere is considered “bad” because it contributes to air pollution and has harmful effects on human health and vegetation.
Source: DD News
