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MBD -HARYANA BOARD-OUR NATURAL RESOURCES-Example
- What is the role of sun in the formation of soil?
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- What is the role of wind in soil formation?
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- What is soil erosion?
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- What is the importance of soil ?
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- How is soil formed?
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- What are three kinds of water sources ?
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- Write one advantage of sea water.
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- 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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