Water may be defined as the polar molecule made of the element hydrogen and oxygen in the ratio of 2:1. Water acts as universal solvent as it dissolves most solute inside it.
The water molecules shows the cohesion property. The cohesion is the attraction property of the water molecule for itself and for the other substances as well. The other molecules are attracted together with water molecule by the cohesion property.
The sentence that is true is A galaxies are holder together by gravity it is not D because galaxies are real its not C because they are not being pulled apart and its not B because galaxies are held together.
