Answer:
pollution is the introduction of harmfull material in the invironment called pollution
Minimum wage and maximum work hours
Water is not a very good solvent it not applies to the water.
Answer:
Refraction is an effect that occurs when a light wave, incident at an angle away from the normal, passes a boundary from one medium into another in which there is a change in velocity of the light. ... The wavelength decreases as the light enters the medium and the light wave changes direction.
