What are the lowest two layers of the atmosphere?
troposphere
Most of the important processes of the atmosphere take place in the lowest two layers: the troposphere and the stratosphere.
Which are the layers of atmosphere?
The atmosphere is comprised of layers based on temperature. These layers are the troposphere, stratosphere, mesosphere and thermosphere. A further region at about 500 km above the Earth’s surface is called the exosphere.
What is the second layer of the atmosphere?
The stratosphere is the second major strata of air in the atmosphere. It extends above the tropopause to an altitude of about 30 miles (50 km) above the planet’s surface. The air temperature in the stratosphere remains relatively constant up to an altitude of 15 miles (25 km).
Which layer of the atmosphere is the coldest?
the mesosphere
Located between about 50 and 80 kilometers (31 and 50 miles) above Earth’s surface, the mesosphere gets progressively colder with altitude. In fact, the top of this layer is the coldest place found within the Earth system, with an average temperature of about minus 85 degrees Celsius (minus 120 degrees Fahrenheit).
What are pauses in the atmosphere?
Those pauses are the dividing lines between the troposphere, the stratosphere, the mesosphere, and the thermosphere. The pause regions are even named as well – the tropopause, the stratopause, and the mesopause. The following plot/figure shows these layers on top of the temperature plot from above.
What are the 3 layers of atmosphere?
The atmosphere is comprised of layers based on temperature. These layers are the troposphere, stratosphere, mesosphere and thermosphere.
What is the hottest and coldest layer of the atmosphere?
The MESOSPHERE is the coldest layer and the THERMOSPHERE is the hottest layer in the atmosphere.
What are the four layers of the atmosphere in order?
In order from lowest to highest, the following are the four major layers of the atmosphere: In order from lowest to highest, the following are the four major layers of the atmosphere: the troposphere, stratosphere, mesosphere, and thermosphere.
What is the farthest atmosphere layer?
The thermosphere is the broadest layer of the atmosphere, with a temperature that can reach thousands of degrees Celsius , is full of materials charged with the energy of the sun. The exosphere is the furthest layer of the earth’s surface. This extends from 600-800 km to 9,000-10,000.
What is the lower atmosphere?
lower atmosphere. [′lō·ər ′at·mə‚sfir] (meteorology) That part of the atmosphere in which most weather phenomena occur (that is, the troposphere and lower stratosphere); in other contexts, the term implies the lower troposphere.