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Q. Sulphur dioxide level in the atmosphere can be reduced by using
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Q. Ozone layer in the outer atmosphere helps us in
Q. Setting of plaster of paris involves
Q. U – 235 belongs to which member of the series?
Q. The two elements that are frequently used for making transistors are:
Q. The unit to measure the flow of water is
Q. Decibel is a term connected with
Q. Which metal is used to Galvanize iron?
Q. Alpha particle is the nucleus of an atom of
Q. The average kinetic energy of the molecules of an ideal gas is directly proportional to
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