Question

why is the presence of the ozone layer important for life on earth? it enhances air quality for breathing. it protects life from ultraviolet radiation. it changes the weather each season. it intensifies the heat from the sun.

Explanation:

The ozone layer absorbs most of the Sun's harmful ultraviolet (UV) radiation. UV - radiation can cause skin cancer, cataracts, and damage to plants and marine life. It does not enhance air quality for breathing, change weather each season, or intensify heat from the sun.

Answer:

It protects life from ultraviolet radiation.