In organic chemistry, a hydrate<span> is formed by the addition of hydrogen to another molecule to form a compound. ... By contrast, an anydrate or anhydrous material </span>does <span>not contain any water molecules. The water is usually removed by suction or by heating the substance to a high temperature.</span>
The color of sky is blue due to the molecules in the air dissipate blue light from the sun more than they dissipate red light.
Waterborne<span> diseases are conditions caused by </span>pathogenic<span> micro-organisms that are </span>transmitted<span> in water, the d</span>isease can<span> be spread while bathing, washing or drinking water, or by eating food exposed </span>to <span>infected water</span>
