The atmosphere is a protective layer of gasses that shelters all life on Earth, keeping temperatures within a relatively small range and blocking out harmful rays of sunlight. The atmosphere has five different layers that are determined by the changes in temperature that happen with increasing altitude.
The atmosphere of the Earth is divided into four layers: troposphere, Stratosphere, Mesosphere and Thermosphere, and they are separated based on temperature.… Articles that you might be interested in: Difference Between Meteor and Meteorite Celestial Bodies
From lowest to highest, the major layers are the troposphere, stratosphere, mesosphere, thermosphere and exosphere. Troposphere. … Stratosphere. … Mesosphere. … Thermosphere. … Exosphere. … The Edge of Outer Space.
When the solar system settled into its current layout about 4.5 billion years ago, Earth formed when gravity pulled swirling gas and dust in to become the third planet from the Sun. Like its fellow terrestrial planets, Earth has a central core, a rocky mantle, and a solid crust.
An atmosphere (from Ancient Greek ἀτμός (atmós) ‘vapour, steam’, and σφαῖρα (sphaîra) ‘sphere‘) is a layer of gas or layers of gases that envelope a planet, and is held in place by the gravity of the planetary body. A planet retains an atmosphere when the gravity is great and the temperature of the atmosphere is …
Importance of the Earth’s Atmosphere Temperature. One of the most important benefits the atmosphere provides is maintaining the Earth’s temperature. … Radiation. The atmosphere serves as a protective shield against radiation and cosmic rays. … Physical Protection. … Weather and Water.
In addition to containing nitrogen and oxygen, the atmosphere contains small particles, such as dust, volcanic ash, sea salt, dirt, and smoke. The next time you turn off the lights at night, shine a flashlight, and you will see some of these tiny particles floating in the air. Water is also found in the atmosphere.
10 Fascinating Facts about Earth’s Atmosphere #1. Earth Has Had Three Atmospheres. … #2. Oxygen Caused the First Major Extinction. … #3. Global Warming Was Once Much Greater. … #4. The Sky Should Be Violet. … #5. The Atmosphere Extends 6,200 Miles into Space. …
Moving upward from ground level, these layers are called the troposphere, stratosphere, mesosphere, thermosphere, and exosphere. The exosphere gradually fades away into the realm of interplanetary space. Layers of the atmosphere: troposphere, stratosphere, mesosphere and thermosphere.
Half of the earth’s atmosphere, and consequently the most oxygen, is found in the troposphere (which is also the layer that s closest to the surface of the earth). Almost all dust and water vapor in the atmosphere is also in this layer. Another useful layer is the one just above the troposphere, the stratosphere.
