The correct answer is: A. 5 and 10 km.
Ozone is a gas that is found in the Earth’s atmosphere. It is most concentrated in the stratosphere, which is the layer of the atmosphere that is about 10 to 50 kilometers above the Earth’s surface.
The ozone layer absorbs ultraviolet radiation from the sun, which helps to protect life on Earth from the harmful effects of this radiation.The ozone layer is important because it helps to protect life on Earth from the harmful effects of ultraviolet radiation. Ultraviolet radiation can cause skin cancer, cataracts, and other health problems. It can also damage plants and animals.
The ozone layer is constantly being created and destroyed. The main way that ozone is created is through a reaction between oxygen molecules and ultraviolet radiation. The main way that ozone is destroyed is through a reaction with chlorine and bromine atoms. These atoms are released into the atmosphere from human activities such as the use of chlorofluorocarbons (CFCs).
CFCs are chemicals that were once widely used in refrigerators, air conditioners, and other products. However, it was discovered that CFCs were destroying the ozone layer. As a result, CFCs were banned in 1987 by the Montreal Protocol.
The Montreal Protocol has been very successful in reducing the amount of CFCs in the atmosphere. As a result, the ozone layer is slowly recovering. However, it will take many years for the ozone layer to fully recover.
In conclusion, the correct answer is: A. 5 and 10 km. Ozone is a gas that is found in the Earth’s atmosphere. It is most concentrated in the stratosphere, which is the layer of the atmosphere that
is about 10 to 50 kilometers above the Earth’s surface. The ozone layer absorbs ultraviolet radiation from the sun, which helps to protect life on Earth from the harmful effects of this radiation.