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In cities like Mumbai and Delhi, the major air pollutants are

A. ozone

B. carbon monoxide and oxides of sulphur

C. hydrocarbons and hot air

D. algae spores and marsh gas

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  4. Desert plants are generally
  5. Tropical evergreen forests are seen in
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  18. The food chain in which microorganisms break down the energy-rich compounds synthesized by producers…
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  25. What is the major constituent of biomass of an organism
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