Explain the following:
A ship submerges more as it sails from sea water to river water.

Explain the following: a. Icebergs floating in sea are dangerous for ships.

Salt is separated from sea water by

Common salt is obtained from sea water by

Pure water can be obtained from sea water by

Explain the following: As a ship in harbour is being unloaded, it slowly rises higher in water.

Pure water can be obtained from sea water by:

The metal that is extracted from sea water is

Explain the following: A hollow glass sphere which floats with its entire volume submerged in water at 4^(@)C , sinks when water is heated abover 4^(@)C .

The pH of water smaple collected from a river was found to be acidic in the range of 3.5-4.5, on the banks of the river were several factories that were discharging effluents into the river. The effluents of which one of the following factories is the most cause for lowering the pH of river water ?

Which of the following are likely to be present in deep sea water?