nandini

The air in Earth’s atmosphere is made up of approximately 78 percent nitrogen and 21 percent oxygen. Air also has small amounts of other gases, too, such as carbon dioxide, neon, and hydrogen.

From the lower layer to the higher layers, they are: the troposphere, stratosphere, mesosphere, thermosphere, and exosphere.

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.

The atmosphere layer closest to the earth is referred to as the troposphere.Beyond the troposphere are the stratosphere, the ozone layer, the mesosphere, and the thermosphere. The atmosphere is made up of 78% nitrogen, 21% oxygen, and smaller amounts of argon, carbon dioxide, helium, and neon.

The atmosphere of earth is composed of nitrogen (78%), oxygen (21%), argon (0.9%), carbon dioxide (0.04%) and trace gases. A variable amount of water vapour is also present in the atmosphere (approx. 1% at sea level) and it decreases with altitude. Carbon dioxide gas is largely responsible for the greenhouse effect.

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 greenhouse effect? Carbon dioxide and water vapour absorb infrared radiations coming to the earth and partly reflect it back to the earth’s surface. Due to this, the surface of the earth gets heated up. This phenomenon is called the greenhouse effect.

Likewise, when carbon dioxide concentrations rise, air temperatures go up, and more water vapor evaporates into the atmosphere—which then amplifies greenhouse heating.

Ozone is technically a greenhouse gas, but ozone is helpful or harmful depending on where it is found in the earth’s atmosphere.