Q. Almost, 50% of N₂ gas produced in oceans, emerged from

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Q. Heterotrophic organisms included fungi and

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Q. Cyanobacteria lives as a symbionts in corals and sponges, making up the

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Q. Anommox transforms helps in fixing nitrogen back to

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Q. Nitrogen is an essential element for marine organism than

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Q. Autotrophic organisms are characterized as, feeding

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Q. Different microbes are responsible for oxidation of ammonia, such as

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Q. Almost, 2% of marine microalgae, responsible in producing

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Q. Nitrogen and phosphate limits primary production in

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Q. Pulses consist of a broad range of

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Q. A fundamental frequency of a sound, enduring a

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Q. Sound assembled if something vibrates, consists of traveling longitudinal

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Q. Amplitude of wave, measuring amount of energy, related to the

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Q. Pitch is defined as functioning of wavelength of the

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Q. Sound travel through a medium, known as

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Q. Unit of sound is denoted as

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Q. If a sound lasts only for a short burst, known as a

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Q. Noise pollution effects marine animals

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Q. Plastic debris are resin pellets that are used for production of plastic

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Q. Small particles have been found suspended in

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