CBSEGrade 11ChemistryEnvironmental Chemistry

Greenhouse Effect and Ozone Layer

The concentration of greenhouse gases in the atmosphere is increasing due to extensive deforestation and burning of fossil fuels. How do these activities affect the ozone layer and what are the consequences for the Earth's climate?

💬 1 answers0 votes👁 51 views21 July 2026

1 Answer

🤖
AI-Assisted Answer
0

📌 CONCEPT: The increasing concentration of greenhouse gases in the atmosphere is causing a significant threat to the ozone layer, leading to global warming and climate change.

📐 RULE / FORMULA: The ozone layer depletion is directly related to the release of CFCs (Chlorofluorocarbons) and other halogenated compounds, which break down the ozone molecule (O3) into oxygen (O2) and chlorine atoms.

💡 WORKED EXAMPLE: For instance, the release of CFCs from aerosol sprays and refrigerators depletes the ozone layer. When CFCs reach the stratosphere, they are broken down by ultraviolet radiation, releasing chlorine atoms that destroy ozone molecules. This process accelerates the depletion of the ozone layer.

⚠️ COMMON MISTAKE: Students often confuse the greenhouse effect with the ozone layer depletion, not realizing that the main cause of ozone layer depletion is the release of CFCs, not just the increase in greenhouse gases.

21 Jul 26