Question:
Which one of the following is the main substance responsible for ozone layer depletion?
Which one of the following is the main substance responsible for ozone layer depletion?
Show Hint
CFCs are a major environmental concern as they directly impact the ozone layer, which protects us from harmful ultraviolet radiation.
Updated On: Nov 5, 2025
- Chlorofluorocarbon (CFC)
- Carbon dioxide (CO2)
- Carbon monoxide (CO)
- Nitric acid (HNO3)
Hide Solution
Verified By Collegedunia
The Correct Option is A
Solution and Explanation
Chlorofluorocarbons (CFCs) are primarily responsible for the depletion of the ozone layer. These compounds release chlorine atoms in the stratosphere, which react with ozone molecules, breaking them down.
Was this answer helpful?
0
0
Top Questions on Environmental Science
- Which one of the following states in India is known to have the highest Chromium pollution of water and soils due to tanning industry?
- CUET (PG) - 2025
- Atmospheric Science
- Environmental Science
- Which of the following are criteria pollutants under national ambient air quality standards?
A. PM\(_2.5\)
B. NO\(_x\)
C. Lead
D. Methane
E. Sulphur dioxide- CUET (PG) - 2025
- Atmospheric Science
- Environmental Science
- Choose the correct statements.
A. Dissolution of oxygen in surface water changes with change in temperature during extreme summer and winters.
B. Dissolved oxygen and BOD have inverse relationship in sewage water.
C. Chemical oxygen demand is always higher than BOD in sewage water.
D. More saline water will have less conductivity.- CUET (PG) - 2025
- Atmospheric Science
- Environmental Science
- Match LIST-I with LIST-II
LIST-I (Atmospheric component)
(A) Nitrogen
(B) Sulphur dioxide
(C) Aerosols
(D) Ozone
LIST-II (Role)
(I) Hypnoxyotic an(t)icle
(II) Photochemical interaction
(III) Retards re-radiation... (Greenhouse Effect)
(IV) Acid rain- CUET (PG) - 2025
- Atmospheric Science
- Environmental Science
- Which of the following were constituents of the famous classical London smog?
A. Smoke
B. Fog
C. SO\(_2\)
D. Peroxyacetyl nitrate
E. Ozone- CUET (PG) - 2025
- Atmospheric Science
- Environmental Science
View More Questions
Questions Asked in UP Board X exam
- Colour origin from
- UP Board X - 2025
- Light and Colour
- How many national political parties are there in India?
- UP Board X - 2025
- Parties and the Party Systems in India
- Prime factorisation of 156 will be:
- UP Board X - 2025
- Number System
- (i) Food chain
(ii) Growth hormone in human.- UP Board X - 2025
- Food Chains and Energy Flow
- A lemon placed in a beaker full of water appears larger than its real size, when viewed sideways. The light phenomenon responsible is -
- UP Board X - 2025
- Refraction of Light
View More Questions