Which percent of the atmosphere is found within the troposphere

The troposphere is the lowest layer of Earth's atmosphere and site of all weather on Earth. The troposphere is bonded on the top by a layer of air called the tropopause, which separates the troposphere from the stratosphere, and on bottom by the surface of the Earth.

The troposphere is wider at the equator 10mi than at the poles 5mi. The troposphere contains 75 percent of atmosphere's mass- on an average day the weight of the molecules in the air is Water vapor concentration varies from trace amounts in Polar Regions to nearly 4 percent in the tropics. Most prevalent gases are nitrogen 78 percent and oxygen 21 percent , with the remaining 1- percent consisting of argon,. Temperature and water vapor content in the troposphere decrease rapidly with altitude.

Water vapor plays a major role in regulating air temperature because it absorbs solar energy and thermal radiation from the planet's surface. Water vapor concentrations vary with latitudinal position north to south. Carbon dioxide is present in small amounts, but its concentration has nearly doubled since The bottom of the troposphere is at Earth's surface. The troposphere extends upward to about 10 km 6.

The height of the top of the troposphere varies with latitude it is lowest over the poles and highest at the equator and by season it is lower in winter and higher in summer.

It can be as high as 20 km 12 miles or 65, feet near the equator, and as low as 7 km 4 miles or 23, feet over the poles in winter. The uppermost layer, that blends with what is considered to be outer space, is the exosphere. Also called a shooting star or falling star. The audio, illustrations, photos, and videos are credited beneath the media asset, except for promotional images, which generally link to another page that contains the media credit.

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Layers of the Atmosphere The envelope of gas surrounding the Earth changes from the ground up. The five basic layers of the atmosphere Exosphere This is the outermost layer of the atmosphere. Thermosphere Between about 53 miles 85 km and miles km lies the thermosphere. Take it to the MAX! The Ionosphere Mesosphere This layer extends from around 31 miles 50 km above the Earth's surface to 53 miles 85 km.

Stratosphere The Stratosphere extends around 31 miles 50 km down to anywhere from 4 to 12 miles 6 to 20 km above the Earth's surface. Troposphere Known as the lower atmosphere almost all weather occurs in this region. Average temperature profile for the lower layers of the atmosphere.