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NCERT TELUGU-BIO-GIO-CHEMICAL CYCLE-EXERCISE
- The amount of oxygen in the atmosphere is %.
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- Oxygen is necessary for -
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- BOD stands for -
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- Oxygen is released in this process -
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- Dissolved oxygen supports life.
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- gas is needed for the decomposition of organic waste.
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- The lowest region in the earth’s atmosphere is -
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- Troposphere extends from the earth’s surface up to about kilometers i...
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- Virtually all human activities occur in the region of the earth’s atm...
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- Anaerobic bacteria convert waste into gas.
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- The stratosphere extends from 10 km to about km.
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- Mount Everest is at a height of km from the earth’s surface.
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- Ozone molecule contains oxygen atoms.
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- Ozone is in colour.
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- Airline traffic occurs in the lower part of the -
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- Most atmospheric zone is concentrated in layer of the earth’s atmosph...
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- Normal oxygen we breathe has atoms.
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- Ozone protects us from radiations.
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- Montreal protocol is concerned with -
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- Montreal protocol was signed in the year -
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