LIFE SCIENCE

Detailed explanation-1: -At the molecular level, salt dissolves in water due to electrical charges and due to the fact that both water and salt compounds are polar, with positive and negative charges on opposite sides in the molecule. This allows the water molecule to become attracted to many other different types of molecules.

Detailed explanation-2: -Since water is the solvent for electrolytes and nutrients needed by the cells, the ability of water to dissolve a wide range of different substances ensures that cells function normally by supplying them with nutrients. This water also carries waste material away from cells.

Detailed explanation-3: -Water (H2O) is a polar molecule because the electrons of the hydrogen atoms get “pulled” towards the electrons of the oxygen atom. This makes a region of positive charge on the hydrogen atoms and the negative charge on the other end of the molecule, which is the oxygen atom.

Detailed explanation-4: -Cohesion of water Cohesion refers to the attraction of molecules for other molecules of the same kind, and water molecules have strong cohesive forces thanks to their ability to form hydrogen bonds with one another.