The Ozone Layer is an important element in the history of life on earth. Without it, many living things probably would not exist and the earth would be extremely different. Millions of years ago, only single cell creatures existed on earth. At that time, the earth had no oxygen that would support life. But as …
Troposphere
Life on Earth has been protected for thousands of years with a vital layer of poison in the atmosphere. This layer serves as a shield that protects the Earth from harmful ultraviolet radiation from the sun. As far as we know, it is unique to our planet. If it disappeared, ultraviolet sunlight would sterilize the …
The Ozone layer is a deep blanket in the stratosphere made up of comparatively high concentration of the ozone. As a result of its chemical composition, ozone is regarded as a special type of oxygen as it contains three oxygen molecules (O3) as opposed to the usual two oxygen molecules (O2). The ozone layer encircles …
The atmosphere is the mass of air surrounding the earth. It’s constitutes a mixture of nitrogen (about 78%), oxygen (about 21%), and other gasses (about 1%) such as carbon dioxide (0.039%), argon (0.93%) and the rest are trace gases (krypton, neon, helium , and xenon). The mass of the atmosphere totals to about 5.15×1018 kg. Higher …