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The surface of a lake is frozen in severe winter but the water at its bottom is still liquid. What is the reason?

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The surface of a lake is frozen in severe winter but the water at its bottom is still liquid. What is the reason? A. Ice is a conductor of heat B. Since the surface of the lake is at the same temperature as the air no heat is lost C. The density of water is maximum at 4Â°C D. None of the above Check Answer Complaint Here As Incorrect Question / Answer

Related Questions A liquid is kept in a regular cylindrical vessel up to a certain height . If this vessel is replaced by another cylindrical vessel having half the area of cross-section of the bottom, the pressure on the bottom will A. remain unaffected B. be reduced to half the earlier pressure C. be increase to twice the earlier pressure D. be reduced to one-fourth the earlier pressure Check Answer Complaint Here As Incorrect Question / Answer Which object in the solar system harbons a salty ocean beneath its frozen surface that has been spotted by NASA's Hubble SpaceTelescope? A. Moon B. Jupiter C. CERES D. Ganymede Check Answer Complaint Here As Incorrect Question / Answer What does the imaginary line passing through Lake Ontario, Lake Erie, Lake Huron and Lake Superior represent? A. The Southern boundary of canada B. The Northern limit of iron and steel industry of USA C. The internal waterway route to USA D. The internal waterway route to Canada Check Answer Complaint Here As Incorrect Question / Answer For seeing objects at the surface of water from a submarine under water, the instrument used is A. kaleidoscope B. periscope C. spectroscope D. telescope Check Answer Complaint Here As Incorrect Question / Answer Free surface of a liquid behaves like a sheet and tends to contract to the smallest possible area due to the A. force of adhesion B. force of friction C. centrifugal force D. force of cohesion Check Answer Complaint Here As Incorrect Question / Answer

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