CH 4 AIR

Ozone

 Air pressure is defined as the pressure exerted by the weight of air on the Earth’s surface.

Convectional rainfall, orographic rainfall and cyclonic rainfall are the three types of rainfall.

Weather refers to the short-term changes in the atmosphere. It is the hour-to-hour, day-to-day condition of the atmosphere.

Carbon dioxide creates greenhouse effect in the atmosphere.

 Nitrogen and oxygen make the bulk of the atmosphere.

The huge blanket of air surrounding the Earth is called atmosphere.

Nitrogen and oxygen together make up 99% of the planet’s atmosphere. The rest of the gases are minor components but sometimes are very important (Figure below). Nitrogen and oxygen make up 99% of the atmosphere; carbon dioxide is a very important minor component.19-Mar-2021

Atmosphere is essential for life on Earth as it supplies oxygen, water, CO2 and some nutrients (N) to living organisms, and protects living organisms from temperature extremes and excessive UV radiation.

Simulations suggest Earth’s oxygen-rich atmosphere will last only another billion years. A pair of researchers from Toho University and NASA Nexus for Exoplanet System Science has found evidence, via simulation, that Earth will lose its oxygen-rich atmosphere in approximately 1 billion years.