Q. Method by which a dissolved oxygen is determined, known as

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Q. Organic pollutants are discharged as a municipal sewage and

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Q. Organic solids consists of carbohydrates, fats and

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Q. Water pollution due to tailing from ore washing and Sinert suspended solids, known as

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Q. What causes PCBs and dioxins ?

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Q. What chemicals are used in loading, transit and accidental leakage from industrial storage ?

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Q. In humans, nitrates causes blood disease and

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Q. Solubility of oxygen in water is inversely proportional to

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Q. Which bacteria flourish in presences of free dissolved oxygen in sewage?

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Q. Nitrates, phosphates and sulphates are plants

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Q. Most animals and plants can grow with pH, between

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Q. Bacteria which carry out decomposition of organic matter is known as

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Q. In SOCs, most common organic pollutants are:

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Q. What causes rise in nutrient level of water ?

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Q. Rise of nutrient in water is known as

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Q. Effluents that comes from various industries such as food and drugs is known as

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Q. End product of 'aerobic' decomposition are:

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Q. 'BOD' stands for

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Q. Radionuclide enters human body through dust and

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Q. Preliminary treatment is carried out for removal of the

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