Sure, let's analyze the question step by step.

1. **Understanding CFCs**: CFCs (chlorofluorocarbons) are chemical compounds that were commonly used in refrigeration, air conditioning, packaging, and insulation, among other applications.

2. **Environmental Impact of CFCs**: CFCs are known to have a significant negative impact on the ozone layer. When CFCs are released into the atmosphere, they eventually rise to the stratosphere, where they are broken down by ultraviolet (UV) radiation, releasing chlorine atoms. These chlorine atoms then react with ozone (O3) molecules, leading to the depletion of the ozone layer.

3. **Ozone Layer**: The ozone layer is crucial for protecting life on Earth from harmful UV radiation. Depletion of the ozone layer leads to an increase in UV radiation reaching the Earth's surface, which can cause skin cancer, cataracts, and other health issues, as well as environmental damage.

4. **Montreal Protocol**: In response to the harmful effects of CFCs on the ozone layer, the Montreal Protocol was established in 1987. This international treaty aimed to phase out the production and use of ozone-depleting substances, including CFCs.

5. **Effect of Banning CFCs**: The primary goal of banning CFCs was to stop the depletion of the ozone layer and allow it to recover over time.

Now, let's evaluate the options provided in the question:

a. **Eliminate it from food**: CFCs were not primarily used in food, so this option is not relevant.

b. **Eliminate the acid rain**: Acid rain is caused by sulfur dioxide (SO2) and nitrogen oxides (NOx) emissions, not by CFCs. Therefore, this option is incorrect.

c. **Eliminate the ozone hole**: The banning of CFCs was specifically aimed at addressing the depletion of the ozone layer, which includes the reduction of the ozone hole. While the ozone hole has not been completely eliminated, the ban has significantly reduced the rate of ozone depletion and has allowed for gradual recovery.

d. **None of these**: This option is incorrect because the banning of CFCs has had a significant impact on reducing ozone depletion.

Based on the analysis, the correct answer is:

c. **eliminate the ozone hole**

Question

Sure, let's analyze the question step by step.

1. **Understanding CFCs**: CFCs (chlorofluorocarbons) are chemical compounds that were commonly used in refrigeration, air conditioning, packaging, and insulation, among other applications.

2. **Environmental Impact of CFCs**: CFCs are known to have a significant negative impact on the ozone layer. When CFCs are released into the atmosphere, they eventually rise to the stratosphere, where they are broken down by ultraviolet (UV) radiation, releasing chlorine atoms. These chlorine atoms then react with ozone (O3) molecules, leading to the depletion of the ozone layer.

3. **Ozone Layer**: The ozone layer is crucial for protecting life on Earth from harmful UV radiation. Depletion of the ozone layer leads to an increase in UV radiation reaching the Earth's surface, which can cause skin cancer, cataracts, and other health issues, as well as environmental damage.

4. **Montreal Protocol**: In response to the harmful effects of CFCs on the ozone layer, the Montreal Protocol was established in 1987. This international treaty aimed to phase out the production and use of ozone-depleting substances, including CFCs.

5. **Effect of Banning CFCs**: The primary goal of banning CFCs was to stop the depletion of the ozone layer and allow it to recover over time.

Now, let's evaluate the options provided in the question:

a. **Eliminate it from food**: CFCs were not primarily used in food, so this option is not relevant.

b. **Eliminate the acid rain**: Acid rain is caused by sulfur dioxide (SO2) and nitrogen oxides (NOx) emissions, not by CFCs. Therefore, this option is incorrect.

c. **Eliminate the ozone hole**: The banning of CFCs was specifically aimed at addressing the depletion of the ozone layer, which includes the reduction of the ozone hole. While the ozone hole has not been completely eliminated, the ban has significantly reduced the rate of ozone depletion and has allowed for gradual recovery.

d. **None of these**: This option is incorrect because the banning of CFCs has had a significant impact on reducing ozone depletion.

Based on the analysis, the correct answer is:

c. **eliminate the ozone hole**

Knowee AI · Accepted Answer