Why is the ozone layer important to life on earth?

This layer, which is located 20 to 30 kilometers above the surface, contains 10 parts per million of O3. Its purpose is to absorb the majority of the sun's UV radiation, which is detrimental to both plants and living things.

The ozone layer is important to life on Earth because it absorbs most of the sun's harmful ultraviolet (UV) radiation, preventing it from reaching the Earth's surface in high concentrations. UV radiation can cause various health problems in humans, such as skin cancer and cataracts, and can also harm marine life, plants, and ecosystems. Additionally, UV radiation can affect the growth and development of phytoplankton, which are crucial for the marine food chain and for producing oxygen through photosynthesis. Therefore, the ozone layer acts as a protective shield for life on Earth.