Which of the following is a water polluting factor
Q. Which of the following is a water polluting factor? Smoke Industrial waste Detergent Ammonia Answer: Industrial waste
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Biological Oxygen Demand (BOD) is a measure of
Q. Biological Oxygen Demand (BOD) is a measure of Industrial wastes poured into water bodies Extent to which water is polluted with organic compounds Amount of carbon monoxide inseparably combined with haemoglobin Amount of oxygen needed by green plants during night Answer: Extent to which water is polluted with organic compounds
Polluted water can be purified by using
Q. Polluted water can be purified by using Micro-organisms Algae Pesticides Fishes Answer: Micro-organisms
B.O.D. test or biological oxygen demand test is made for measuring
Q. B.O.D. test or biological oxygen demand test is made for measuring Air pollution (b)Water pollution Noise pollution Soil pollution Answer: Water pollution
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Which of the following is biodegradable pollutant
Q. Which of the following is biodegradable pollutant? Sewage Plastic Polythene DDT Answer: Sewage
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The most common indicator organisms that represent polluted waters is
Q. The most common indicator organisms that represent polluted waters is E. Coli S. Typhi C. Vibrio Entamoeba Answer: E. Coli
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One of the following is the chief source of water and soil pollution
Q. One of the following is the chief source of water and soil pollution Agro industry Mining Thermal power stations All of these Answer: All of these
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What is the groundwater stored at places between the layers of hard rock below water table called?
Q. What is the groundwater stored at places between the layers of hard rock below water table called? Water cycle Water table Ground water Aquifer Answer: Aquifer
High coliform count in water is an indicator of
Q. High coliform count in water is an indicator of Industrial pollution Sewage contamination Hardness of water Oil pollution Answer: Sewage contamination
The high amount of E. coli in water is the indicator of
Q. The high amount of E. coli in water is the indicator of Hardness of water Industrial pollution Sewage pollution Presence of chlorine in water Answer: Sewage pollution
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