Answer: protection oxygen warmth
Step-by-step explanation:
Atmosphere is one of the important spheres of the planet earth. The atmosphere includes the mass of gases which favors life on earth. The atmosphere act as a blanket which provides protection against the invasive and harmful ultraviolet rays which are capable of causing mutations in living organisms. It includes oxygen as chief respirable gas that is required by all living organisms to sustain their life. The atmospheric gases traps the light energy from sun therefore, retains the warmness.