Sound becomes a hazardous noise pollution if its level is above
30 dB
80 dB
120 dB
150 dB
Additional Questions
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Among the following, a secondary pollutant is |
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BOD of a pond is related to ______ in per unit volume of water |
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Which one of the following statements is wrong in case of Bhopal, (India) tragedy? |
Answer |
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A disease affecting industrial workers is |
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Carbon monoxide is a pollutant because it |
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As it travels along the food chain, the concentration of DDT |
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CO emitted by automobiles prevents O-transport to body tissues by |
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Maximum deposition of DDT will occur in |
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Decomposition of domestic wastes under natural processes is called |
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Which one of the following is not normally a pollutant? |
Answer |