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NCERT TELUGU-BIO-GIO-CHEMICAL CYCLE-EXERCISE
- What is water cycle?
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- The cycles that involve the flow of nutrients on earth from environmen...
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- Biogeochemical pathways determine the path of transfer of on earth.
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- Biogeochemical cycle includes pathways.
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- is a universal solvent.
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- % of all the water on the earth is in the oceans.
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- % of all the water on the earth is fresh water.
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- 2% of this fresh water of the total water is permanently frozen in an...
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- Only about of water on earth is in the rivers and lakes.
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- The human body is composed of % of water.
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- Water is important because -
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- element is the building block of proteins and amino acids.
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- The most abundant element in the earth's atmosphere is
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- All living things need nitrogen mainly for -
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- % of nitrogen is present in the atmosphere.
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- Dissolution of harmful substances, like SO2 and oxides of nitrogen to...
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- Atmospheric nitrogen occurs primarily in inert form as
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- Most atmospheric nitrogen is ‘fixed’ through processes.
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- Nitrogen can also be fixed as nitrates by -
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- Symbiotic nitrogen fixer is -
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