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VGS PUBLICATION-BRILLIANT-BIO GEOCHEMICAL CYCLES-EXERCISE
- What are the uses of oxygen?
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- What is Biochemical Oxygen Demand (BOD) ?
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- State two harmful effects of Ozone hole or Ozone layer depletion.
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- What are the harmful effects of acid rain ?
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- What is the difference in fog and smog? Give two harmful effects of sm...
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- What is bad Ozone and good Ozone?
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- There is a mass mortality of fishes in a pond. What may be the reasons...
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- Why is it said that nitrogen is very important for us?
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- Write about the sources of water on earth. Why we are facing water sho...
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- What is water cycle?
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- What is Nitrogen fixation? What is its importance?
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- What is ammonification ? Under which condition does ammonification occ...
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- In which forms is carbon found on earth ?
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- What is global warming? What are its effects?
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- Explain carbon cycle in nature with diagram.
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- Describe the oxygen cycle.
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- The flow of nutrients from living or-ganisms to environment and from e...
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- The percentage of salt water on earth is
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- The human body is composed of about how much water?
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- These form integral part of basic organic compounds of life.
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