Question

why is atmosphere most important layer for life of earth

Answer 1

The atmosphere protects and sustains life on Earth in a variety of ways. It provides oxygen for respiration, carbon dioxide for photosynthesis, nitrogen for nitrogen fixation, and water vapor for precipitation that nourishes the land. Carbon dioxide and water vapor reduce temperature extremes between day and night, keeping the
planet warm enough for living organisms. The ozone layer absorbs ultraviolet solar radiation that could damage living tissue, and higher layers protect the Earth from bombardment by meteorites and charged particles in the solar wind.
that's why it is important..