write the comopotion of air and write two uses of nitrogen oxygen corb
ondioxide
Answers
Answer:
75% NITROGEN
22% OXYGEN
2.2% CARBON
0.8% OTHER GASES
Explanation:
NITROGEN: USED IN ENRICHING SOIL
:USED IN AMMONIA
OXYGEN: USED FOR SURVIVAL OF LIVING BEING
:USED IN CYLINDERS THAT ARE USED AT PLACES OXYGEN NOT AVAILABLE
CO2( CARBON DI OXIDE): USED IN AERATED DRINK SODA
USED IN MAKING ALLOYS
Answer:
The atmosphere is a huge blanket of air that surrounds the earth. It provides us the air we breathe and protects us from the harmful effects of the sun’s rays. Atmosphere is consists of mainly nitrogen (78%), oxygen (21%), argon (0.93%), carbon dioxide (0.03%) and other gases like helium, ozone, argon and hydrogen (0.04%).
• Nitrogen is very important for plant’s survival. They cannot take nitrogen directly from the air. Bacteria that live in the soil and roots of some plants take nitrogen from the air and change its form so that plants can use it.
• Oxygen is the second most plentiful gas in the air. Humans and animals take oxygen from the air. Green plants produce oxygen during photosynthesis.
• Carbon dioxide is another important gas. Green plants use carbon dioxide to make their food and release oxygen. Humans or animals release carbon dioxide. The amount of carbon dioxide released by humans or animals seems to be equal to the amount used by the plants which make a perfect balance.
Structure of the Atmosphere
The atmosphere is divided into five layers starting from the earth’s surface. These are Troposphere, Stratosphere, Mesosphere, Thermosphere and Exosphere.
• Troposphere: This layer is the most important layer of the atmosphere. Its average height is 13 km. The air we breathe exists here. Almost all the weather phenomena like rainfall, fog and hailstorm occur in this layer.
• Stratosphere: It lies above the troposphere which extends up to a height of 50 km. This layer is almost free from clouds and associated weather phenomenon, making conditions most ideal for flying aeroplanes. One important feature of stratosphere is that it contains a layer of ozone gas.
• Mesosphere: This is the third layer of the atmosphere. It lies above the stratosphere. It extends up to the height of 80 km. Meteorites burn up in this layer on entering from the space.
• Thermosphere: In thermosphere temperature rises very rapidly with increasing height. Ionosphere is a part of this layer. It extends between 80-400 km. This layer helps in radio transmission. In fact, radio waves transmitted from the earth are reflected back to the earth by this layer.
• Exosphere: The upper most layer of the atmosphere is known as exosphere. This layer has very thin air. Light gases like helium and hydrogen float into the space from here.
Weather and Climate
Weather is the mix of events that happen each day in our atmosphere including temperature, rainfall and humidity. Weather is not the same everywhere. Climate refers to the average weather condition of a place for a longer period of time. The temperature is the degree of hotness and coldness of the air. The temperature of the atmosphere changes not only between day and night but also from season to season. Insolation is the incoming solar energy intercepted by the earth which influences the distribution of temperature. The amount of insolation decreases from the equator towards the poles.