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MBD -HARYANA BOARD-OUR NATURAL RESOURCES-Example
- What are the two types of water resources ?
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- What are the sources of fresh water?
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- What do you understand by aquatic habitat ?
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- How much percent of nitrogen is present in atmosphere ?
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- How is nitrogen used in living organisms.
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- Name two plants which are capable of fixing atmospheric nitrogen.
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- Write two uses of mirco-organisms.
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- Name any two natural cycles operating in nature.
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- Name the gaseous components of biosphere.
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- Name the source of energy for the process of photosynthesis.
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- Define biomass.
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- Name two nitrifying bacteria.
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- Define pollution.
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- What are pollutants ?
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- What are the three major types of pollution ?
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- What is soil pollution?
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- Which part of solar radiation is absorbed by ozone layer ?
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- Name the major surface water pollutant from farm run-off and bathroom...
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- Give the source of pathgens into water.
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- What is the source of aerosols ?
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