Ozone is formed in the upper atmosphere by the reaction of O2 in the presence of UV radiation. What is the reason for ozone depletion leading to increased UV radiation exposure?
1) Ozone absorbs UV radiation and prevents it from reaching the Earth's surface.
2) Ozone reacts with UV radiation to form harmful compounds.
3) Ozone depletion causes a decrease in the Earth's ozone layer.
4) Ozone depletion leads to an increase in the production of UV radiation.
