Answer:
B
Step-by-step explanation:
The ozone layer, which protects the Earth from harmful ultraviolet (UV) radiation, can be depleted by a number of factors. The main cause of ozone depletion is the release of certain man-made chemicals, such as chlorofluorocarbons (CFCs) and halons, into the atmosphere. These chemicals are found in a range of products, including refrigerants, foam insulation, and fire suppressants, and they can remain in the atmosphere for many years after they are released. When they reach the upper atmosphere, they can break down and release chlorine or bromine atoms, which can react with and destroy ozone molecules.
Therefore, of the four options listed, the use of products containing CFCs and halons (option d) is likely to contribute the most to the depletion of the ozone layer. Vehicle exhaust (option a), coal-fired power plants (option b), and the use of aerosols (option d) can also contribute to ozone depletion, but the levels of ozone-depleting chemicals released by these sources are typically much lower compared to the use of products containing CFCs and halons.
But, coal fired power plants by far release more CO2 than any other source, and they operate around the clock, around the world, so they do the most damage. But, they all can lead to depletion of the ozone layer of the Earth.