Question

CFCs are considered more harmful to the ozone layer than HCFCs because:

Answer 1

CFCs contain chlorine atoms that can destroy ozone molecules, making them more harmful to the ozone layer compared to HCFCs. HCFCs break down more easily in the troposphere, resulting in fewer ozone-destroying molecules in the stratosphere.

Step-by-step explanation:

CFCs are considered more harmful to the ozone layer than HCFCs because they contain chlorine atoms that can destroy ozone molecules. When CFCs are broken down by ultraviolet (UV) radiation in the stratosphere, they release chlorine atoms that react with ozone molecules, resulting in the removal of ozone.

Therefore, CFCs contribute to ozone depletion for years. On the other hand, HCFCs break down more readily in the troposphere and produce fewer ozone-destroying molecules in the stratosphere.