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Q. Ice floats on water because its density is ___ than that of water.
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Q. Which instrument is used to measure depth of ocean ?
Q. Energy is continuously created in the sun due to:
Q. Pycnometer is an instrument used to measure the
Q. Permanent hardness of water may be removed by the addition of
Q. Production of alcohol from organic compounds by microorganisms is known as
Q. Which of the following metal forms Amalgam with other metals?
Q. How many Ergs are there in 1 joule?
Q. Water is used in Heated water of polyethenes because–
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