Blue green algae is important in .....
AAmmonia production
BCO2 emission
CNitrogen fixation
DAll the above
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Related Questions:
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സസ്യങ്ങളിൽ ബീജ സംയോഗത്തിന് ശേഷം നടക്കുന്ന പ്രവർത്തനം ഏതാണ് ?
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