Atmosphere

Atmosphere is the layer of gases that surrounds the Earth and is held in place by the planet's gravity. It is composed of nitrogen, oxygen, and other gases, and is responsible for the air we breathe.

Atmosphere

Atmosphere is the layer of gases that surrounds the Earth and is held in place by the planet’s gravity. It is composed of 78% nitrogen, 21% oxygen, and 1% other gases, including argon, carbon dioxide, and water vapor. The atmosphere is divided into five distinct layers, each with its own unique characteristics.

The troposphere is the lowest layer of the atmosphere and is the layer closest to the Earth’s surface. It is the layer where most of the Earth’s weather occurs, and it is where most of the air we breathe is found. The temperature in the troposphere decreases with altitude, and the air pressure is highest at the surface.

The stratosphere is the second layer of the atmosphere and is located above the troposphere. It is the layer where most of the ozone layer is found, and it is where most of the Earth’s commercial air traffic occurs. The temperature in the stratosphere increases with altitude, and the air pressure is lower than in the troposphere.

The mesosphere is the third layer of the atmosphere and is located above the stratosphere. It is the layer where most meteors burn up, and it is where the temperature is the coldest in the atmosphere. The temperature in the mesosphere decreases with altitude, and the air pressure is lower than in the stratosphere.

The thermosphere is the fourth layer of the atmosphere and is located above the mesosphere. It is the layer where the aurora borealis and aurora australis occur, and it is where the temperature is the hottest in the atmosphere. The temperature in the thermosphere increases with altitude, and the air pressure is lower than in the mesosphere.

The exosphere is the fifth and outermost layer of the atmosphere and is located above the thermosphere. It is the layer where most of the Earth’s satellites orbit, and it is where the air is so thin that it is considered to be part of outer space. The temperature in the exosphere decreases with altitude, and the air pressure is lower than in the thermosphere.

Atmosphere is an important part of the Earth’s environment, and it plays a vital role in the planet’s climate and weather. It is also important for providing air for us to breathe and for protecting us from the harmful radiation of the Sun.