3. Explain and draw a neat diagram of Nitrogen cycle.
4. Draw a mind map to show the steps involved in crop production and Nitrogen cycle.
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3. Explain and draw a neat diagram of Nitrogen cycle.
4. Draw a mind map to show the steps involved in crop production and Nitrogen cycle.
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our atmosphere has 78% Nitrogen gas is one of the essential constituent of all living organisms as plants of protein and chlorophyll nucleus acids and vitamins the atmospheric nitrogen cannot be taken directly by plants and animals certain bacteria and blue green algae present in the soil fix nitrogen from the atmosphere and convert it into compounds of Nitrogen once nitrogen is converted in these usable compounds it can be utilised by plants from the soil proved their roots system nitrogen is then used for the synthesis of plants protein and other compounds animal feeding on plants get these protein and other nitrogen compounds in plants and animals when plants and animals die bacteria and fungi present in the soil convert the nitrogen waste into nitrogen place compound to be used by plants again certain other bacteria convert some parts of them Nitrogen gas which goes back into the atmosphere as a result the percentage of Nitrogen in atmosphere in the more or less constant