EXAMIANS
In water chemical treatment plant, use of chloramines ensures
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Radioactive solid nuclear wastes are disposed off by
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White smoke coming out of the chimney of a furnace indicates the use of
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Inhalation of silica dust by human being causes
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Ambient noise level can be reduced by __________ decibels by planting trees (like coconut, neem etc.) near public utility buildings (like hospitals & schools).
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Algae growth in water is controlled by
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Out of the following, TLV of __________ is maximum (about 500 ppm).
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The average thickness of ozone layer in stratosphere is about __________ dobson unit (DU).
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Peroxyacyl nitrate (PAN), a pollutant is found in the
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Threshold limit value (TLV) of CO in air is __________ ppm.
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