The solubility of gases in water ___________ with a rise in temperature.
Decrease
Increase
No effect
Increase rapidly
____________ is used for doing some mechanical work such as running a flour mill, drawing water from a well etc.
Carbondioxide
Water
Phosphorous
Sulphur
The electricity produced by using the flow of water from a dam is called
Hydroelectricity
Thermo electricity
Nuclear electricity
Heat
The substance which is dissolved in water is called
Solute
Solvent
Solution
Mixture
In the __________, water exists as water vapour or steam.
Liquid form
Solid state
Gaseous form
Combined state
Wells and springs are __________ sources
Fresh e=water
Surface water
Salt water
Underground water
________________ is essential for the growth of plants.
Carbon
Lithium
Air under pressure is blown into the filtered water. This process is called
Chlorination
Aeration
Filtration
Sedimentation
A substance which cause pollution is called a
Pollutant
The substance in which solute is dissolved is called
