What is the main source of ozone layer depletion? (2021)
Practice Questions
1 question
Q1
What is the main source of ozone layer depletion? (2021)
Carbon dioxide
Chlorofluorocarbons (CFCs)
Methane
Nitrous oxide
Chlorofluorocarbons (CFCs) are the primary substances responsible for the depletion of the ozone layer.
Questions & Step-by-step Solutions
1 item
Q
Q: What is the main source of ozone layer depletion? (2021)
Solution: Chlorofluorocarbons (CFCs) are the primary substances responsible for the depletion of the ozone layer.
Steps: 6
Step 1: Understand what the ozone layer is. It is a layer of gas in the Earth's atmosphere that protects us from harmful ultraviolet (UV) rays from the sun.
Step 2: Learn about chlorofluorocarbons (CFCs). These are man-made chemicals that were commonly used in products like refrigerators, air conditioners, and aerosol sprays.
Step 3: Realize that when CFCs are released into the atmosphere, they eventually rise up to the ozone layer.
Step 4: Understand that CFCs break down in the ozone layer, releasing chlorine atoms.
Step 5: Know that these chlorine atoms react with ozone (O3) molecules, causing the ozone to break apart and deplete the ozone layer.
Step 6: Conclude that CFCs are the main source of ozone layer depletion because they directly harm the ozone molecules.
