Write a short note on atmosphere.
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Hey there!
Like Litthosphere, Biosphere, Hydrosphere. Atmosphere is a layer of gases.
=>> In Greek, Atmos means gases.
=>> It is divided into two parts homosphere,heterosphere. Homo sphere again containing three layers namely Troposphere, Stratosphere, Mesosphere. And heterosphere contains 2 layers namely exosphere, thermosphere.
=>> Atmosphere looks like a thin blanket around our earth when viewed from space.
=>> Nitrogen is the highest composition of gases in atmosphere, while oxygen is the second most.
Like Litthosphere, Biosphere, Hydrosphere. Atmosphere is a layer of gases.
=>> In Greek, Atmos means gases.
=>> It is divided into two parts homosphere,heterosphere. Homo sphere again containing three layers namely Troposphere, Stratosphere, Mesosphere. And heterosphere contains 2 layers namely exosphere, thermosphere.
=>> Atmosphere looks like a thin blanket around our earth when viewed from space.
=>> Nitrogen is the highest composition of gases in atmosphere, while oxygen is the second most.
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Answered by
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Heya...Empress Here...
• The Earth is divided into three realms or domains – Lithosphere, Atmosphere and Hydrosphere. These altogether make up the Biosphere. They all occupy space and posses inertia.
• The atmosphere is said so as it exists in gaseous state. In gaseous state, the atmosphere is characterized by momentum and pressure and regulates the heat around us.
• The blanket of air surrounding us is known as the atmosphere. It exists in several layers around the Earth. These layers become thinner at higher altitudes. The atmosphere protects the Earth from harmful ultraviolet and infrared rays of the sun.
• The atmosphere is a mixture of many gases and tiny solid particles, 78 percent of oxygen and 21 percent of oxygen. The remaining 1 Percent is made up of a number of gases. These include carbon dioxide, water vapour, helium, hydrogen, argon etc.
• Some particles like pollen from plants, dust from dust storms, ash from meteorites and volcanic eruptions, smoke from fire and salt particles from seas are also present in the lower layer of atmosphere.
• On the basis of the characteristics of temperature and air pressure there exist four thermal layers of the atmosphere. They are –
• Troposphere :-
> The troposphere is the lowermost and densest layer. Its height varies from 18 km at the Equator to 8 km at the poles.
• Stratosphere :-
> This layer lies above the troposphere. It extends to a height of 50 km from sea level.
• Mesosphere :-
> This layer lies above the stratosphere and extends to a height of 90 km from ground level.
• Thermosphere :- It extends from mesosphere and consists of two layers :-
a) Ionosphere :- It extends up to a height of about 400 km.
b) Exosphere :- It is the uppermost layer in the structure of the atmosphere. It lies between 400 to 1500 km above the Earth.
• The Earth is divided into three realms or domains – Lithosphere, Atmosphere and Hydrosphere. These altogether make up the Biosphere. They all occupy space and posses inertia.
• The atmosphere is said so as it exists in gaseous state. In gaseous state, the atmosphere is characterized by momentum and pressure and regulates the heat around us.
• The blanket of air surrounding us is known as the atmosphere. It exists in several layers around the Earth. These layers become thinner at higher altitudes. The atmosphere protects the Earth from harmful ultraviolet and infrared rays of the sun.
• The atmosphere is a mixture of many gases and tiny solid particles, 78 percent of oxygen and 21 percent of oxygen. The remaining 1 Percent is made up of a number of gases. These include carbon dioxide, water vapour, helium, hydrogen, argon etc.
• Some particles like pollen from plants, dust from dust storms, ash from meteorites and volcanic eruptions, smoke from fire and salt particles from seas are also present in the lower layer of atmosphere.
• On the basis of the characteristics of temperature and air pressure there exist four thermal layers of the atmosphere. They are –
• Troposphere :-
> The troposphere is the lowermost and densest layer. Its height varies from 18 km at the Equator to 8 km at the poles.
• Stratosphere :-
> This layer lies above the troposphere. It extends to a height of 50 km from sea level.
• Mesosphere :-
> This layer lies above the stratosphere and extends to a height of 90 km from ground level.
• Thermosphere :- It extends from mesosphere and consists of two layers :-
a) Ionosphere :- It extends up to a height of about 400 km.
b) Exosphere :- It is the uppermost layer in the structure of the atmosphere. It lies between 400 to 1500 km above the Earth.
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