Common indicator organisms of water pollution is
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What percentage of solar energy/radiation is used in photosynthesis?
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Environmental studies are very important for
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Increased arthmatic attacks in certain seasons are related to
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The circulation or cycling of elements in an ecosystem is known as
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Complete the following
Organisms ⟶ Populations ⟶ Communities ⟶ . . . . . . . . Ecosphere.
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Which one of the following is matching sanctuary?
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Major source of biologically significant sulphur is
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Animals and plants are best protected in
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Product moment coefficient of correlation measures which particular type of relationship between two variables?
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Which of the plants is hydrophyte?
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Soil conservation is achieved through
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The cycling of elements in an ecosystem is called
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Greenhouse gases include:
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Biosphere is made of
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Soil salinity occurs in India to the extent of
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The lightest radioactive element is
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Which is NOT correctly matched?
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Fluorosis can lead to
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An area of soil throughly wetted and allowed to drain till percolation stops will have a water content called
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