EXAMIANS
The biological decomposition of organic substances in wastes controlled conditions is called
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Oceans act as sinks for atmospheric gases including carbon dioxide whose concentration in the atmosphere is increased by the
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Which of the following fine dust removal equipments is the most efficient?
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Which of the following radioactive wastes emits all α, β & γ rays and hence is the most hazardous of all radioactive emitters?
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Black smoke coming out of the chimney of a furnace is an indication of the use of __________ in the furnace.
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Inhalation of silica dust causes a disease called
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The upper layer of atmosphere is called the
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TLV of NO₂ & NO exposure for the human being is 5 & 25 ppm respectively. Prolonged exposure of human being to NO₂ causes
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What are the methods of treatment & disposal of radioactive wastes?
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__________ substances present in sewage are removed in grit chamber during sewage treatment.
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