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Mercury is a heavy silvery-white metal that is liquid at room temperatures. It is commonly used in thermometers, nano-meters and barometers, thus it is present in nearly every chemistry and physics lab. Confined in such instruments mercury itself is not likely to cause health problems, but if there is a means for mercury vapor to enter the environment, these highly toxic vapors present a health hazard.
A fluorescent lamp tube is filled with a gas containing low pressure mercury vapor and argon, xenon, neon, or krypton. Fish can absorb methyl mercury from their food and directly from water as it passes over their gills.
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Who has resigned as chairman of the National Commission for Scheduled Tribes?
Consider the following statements with respect to ‘Parliamentary System of Government in India’:
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Which source states that man by himself is only half-man and his second half is the wife?
Where have archaeologists recently discovered a huge 7,000-year-old prehistoric settlement?
Consider the following pairs:
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Which of the following Indian states has won the first prize in the ‘Best State’ category st the National Water Awards, 2023?
What new research facility has IIT Madras launched, recognized as the largest in Asia?
Aroma park has been established in Uttarakhand at which place?
