No, substances dissolves faster in warm water. If we dissolve sugar or salt in warm water then it will dissolve faster than cold water.

Yes, flowing water dissolves many soluble minerals present in the soil. These minerals are generally soluble in water.

This is the correct answer. The water table is the level at which the ground water is found. Percolation is filtering of fluids through porous materials, So the water percolates through the porous rocks and water table is formed just above the non porous rocks.

This is the correct answer. The molecules of solids are very closely packed with strong forces of attraction. The molecules of liquids are loosely packed with loose force of attraction and in the gases molecules are very loosely packed with weak forces of attraction.

Honey is solute in this solution.

Sugar and salt both are soluble in water, so this is the correct answer.

This is the correct answer. Water is a solvent as it dissolves another substance. Sugar is a solute as solute is a substance that gets dissolves in the solvent. Sugar and water are soluble and makes a solution. Sand and water are insoluble as Sand does not dissolves in water.

Evaporation is the process when the sun heats up water in river or lakes or the ocean and turns it in to vapour or steam. The water vapour or steam leaves the river, lake or ocean and goes in to the air. In the above experiment the water in the salty solution evapoated in  the air and only the crystals of salt left.

Water in oceans are not a drinkable water as it contains lots of salt. Presence of lots of salt makes it unsuitable for drinking.

This is the correct answer as both sand and kerosene are insoluble in water.

Yes, sugar dissolve quickly in warm water. So this is a correct answer.

This is the right answer. Here by mistake he wrote soluble, where as sand is insoluble in water.

This is the correct answer. Water is a universal solvent because it dissolves more substances than any other liquid. Sand and mud in water are insoluble impurities. Part of a solution that get dissolved while making it is called solute and sugar and water both make a solution.

This is the correct answer.  Rain water is the primary source of water. Ground water and surface water is the secondary source of water. Boiling is the process that can be use to kill the germs present in the water and saving and using water carefully is called water conservation.

This is the right answer. Here oxygen is a gas that makes a solution with water.