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nitrogen cycle in marine environment MCQ Quiz Online

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MCQs on nitrogen cycle in marine environment Quiz

MCQ: Nitrogen' fixation takes place in shallow and 'oligotrophic' water, harbouring;

Coral Reefs
Phytoplankton's
Zooplanktons
organisms

MCQ: Cyanobacteria' such as; Trichodesmium sp are able to fix:

GHGs
Oxygen
Carbon
All of above

MCQ: In euphotic zone, atmospheric CO2 and N2 gas are fixed into;

Inorganic molecules
Organic and Inorganic Molecules
Plants
All of above

MCQ: In euphotic zone, the sunlight penetrates the water, proficiently used by;

Plants
Insects
Autotrophic organisms
sea creature

MCQ: In eutrophication, the water body acquires a high concentration of;

Planktons
Salts
Nutrients
Fishes