The correct answer is: D. caused
The stratospheric ozone layer is a region of Earth’s stratosphere that absorbs most of the Sun’s ultraviolet radiation. It contains high concentrations of ozone (O3) relative to other parts of the atmosphere, although still small in relation to other gases in the stratosphere. The ozone layer contains less than 10 parts per million of ozone, while the average ozone concentration in Earth’s atmosphere as a whole is about 0.3 parts per million. The ozone layer is mainly found in the lower portion of the stratosphere, from approximately 20 to 30 kilometers (12 to 19 mi) above Earth, although its thickness varies seasonally and geographically.
The ozone layer is important because it protects life on Earth from harmful ultraviolet radiation. Ultraviolet radiation can cause skin cancer, cataracts, and other health problems. It can also damage plants and animals. The ozone layer is also important for the Earth’s climate. It helps to regulate the Earth’s temperature by absorbing ultraviolet radiation.
The ozone layer is being depleted by human activities, mainly the release of chlorofluorocarbons (CFCs) into the atmosphere. CFCs are chemicals that were once used in refrigerators, air conditioners, and other products. They are now banned in most countries, but they remain in the atmosphere for many years. CFCs break down in the stratosphere and release chlorine atoms. These chlorine atoms react with ozone molecules, destroying them.
The depletion of the ozone layer is a serious problem. It is causing an increase in the amount of ultraviolet radiation reaching the Earth’s surface. This is increasing the risk of skin cancer, cataracts, and other health problems. It is also damaging plants and animals.
There are a number of things that can be done to protect the ozone layer. One is to reduce the use of CFCs and other ozone-depleting substances. Another is to use products that are ozone-friendly. We can also help to protect the ozone layer by reducing our energy consumption. This will help to reduce the amount of CFCs and other ozone-depleting substances that are released into the atmosphere.
The disruption of the ozone layer is obviously fraught with dangerous consequences. The ozone layer is essential for life on Earth, and its depletion is a serious threat to our health and well-being. We must take action to protect the ozone layer and ensure its continued protection for future generations.
The other options are not correct because they do not accurately describe the relationship between the disruption of the ozone layer and dangerous consequences. Option A, “involving,” does not accurately describe the relationship because the disruption of the ozone layer is not simply a matter of involving dangerous consequences. Option B, “concerned,” does not accurately describe the relationship because the disruption of the ozone layer is not simply a matter of being concerned about dangerous consequences. Option C, “followed,” does not accurately describe the relationship because the disruption of the ozone layer does not simply follow dangerous consequences.