User:Gamapasa123/sandbox

THE LAYERS OF ATMOSPHERE Earth's atmosphere is the air around us and above us. The atmosphere is a mixture of gases. It is held in place by Earth's gravity.We usually call it air.The gases in the atmosphere are thicker or denser closet to the ground.The higher up you go, the thinner the atmosphere becomes.Earth's atmosphere has five layers. 1. Exosphere ( 300 km to more than 600 km) •	Many satillites orbit here. •	Air pressure is lowest here. •	Temperature goes up as altitude increses. 2.Thermosphere (90 km to 300 km) •	It is here where the aurora lights are found. •	Air pressure is lower than mesosphere. •	Space shuttles fly in this area. •	Temperature goes up as altitude increases. 3.Mesosphere (50 km to 90 km) •	The air is very thin and cold here. •	Air pressure is lower than stratosphere. •	Meteors or shooting stars burn up here. •	Temperature goes down as altitude increases. 4.Stratosphere (16 km to 50 km) •	The ozone layer is found here.It absorbs maximum ultra-violet rays of the sun, which is dangerous to plants,animals and human beings. •	Most jet planes fly higher above the Earth in the stratosphere,because the air here is calm and clear. •	Air pressure is lower than troposphere. •	Temperature goes up as altitude increases. 5.Troposphere (0 km to 16 km) •	It contains gases like oxygen ,nitrogen and carbon dioxide. •	The changes in climate and weather occur only in the troposphere, because this layer contains water vapour. •	Air pressure is highest in this layer. •	Temperature goes down as altitude increases