function of atmosphere
Answers
What are the functions of the atmosphere?
An atmosphere around Earth is necessary to support life by providing oxygen for breathing and carbon dioxide to plants. Another function is to keep oceans in liquid state. Liquid water can not exist without pressure, so if we take off atmosphere, the water would boil (without getting hot) until all the oceans are frozen (boiling takes away heat) or lost in space. Atmosphere helps to reduce the effects of UV radiation. In space, you get very serious sunburn once you stick your hand out of spacesuit. Mass of all that air above us also helps to keep Earth warm at nights. If Earth had no air, the temperature differences between day and night would be as dramatic as on the Moon. Day +100 centigrade and night -100 centigrade. Our planet wouldn’t be very nice place to live.