The correct answer is A. 100000.
Ozone is a molecule made up of three oxygen atoms. It is found in the stratosphere, which is the layer of the atmosphere that is about 10 to 50 kilometers above the Earth’s surface. Ozone protects the Earth from harmful ultraviolet radiation from the sun.
Chlorine is a chemical element that is found in the Earth’s atmosphere. It is also found in some industrial products, such as refrigerants and solvents. Chlorine can react with ozone to form chlorine monoxide and oxygen. This reaction destroys ozone.
One atom of chlorine can destroy over 100000 molecules of ozone. This is because chlorine monoxide is a very reactive molecule. It can react with other ozone molecules to form more chlorine monoxide and oxygen. This chain reaction can continue until all of the ozone in the area is destroyed.
The other options are incorrect because they are not large enough numbers to represent the number of ozone molecules that can be destroyed by one atom of chlorine.