Explanation
D: Chloro flouro carbon (CFCs) is responsible for depleting the ozone layer.
CFCs are a group of synthetic compounds that contain chlorine, fluorine, and carbon atoms. They were widely used in various industries for many years, particularly in aerosol propellants, refrigeration, and air conditioning systems. When released into the atmosphere, CFCs can reach the stratosphere, where they undergo a series of chemical reactions triggered by ultraviolet (UV) radiation.
These reactions lead to the destruction of ozone molecules, resulting in the thinning of the ozone layer. The chlorine atoms released from CFCs are particularly harmful as they act as catalysts, breaking down ozone molecules without being consumed in the process. As a result, a single chlorine atom can destroy thousands of ozone molecules before it is deactivated.
The depletion of the ozone layer has serious consequences as it allows more harmful UV radiation from the sun to reach the Earth's surface. This increased UV radiation can have detrimental effects on human health, such as an increased risk of skin cancer, cataracts, and weakened immune systems. It also impacts ecosystems, including marine life, crops, and overall biodiversity.
