Pollution

The litter problem on the coast of Guyana, 2010

The Lachine Canal in Montreal, Quebec, Canada.

Pollution is the introduction of contaminants into the natural environment that cause adverse change. Pollution can take the form of chemical substances or energy, such as noise, heat or light. Pollutants, the components of pollution, can be either foreign substances/energies or naturally occurring contaminants. Pollution is often classed as point source or nonpoint source pollution.

单词	Overpollution
释义	Overpollution 英语百科 Pollution Pollution is the introduction of contaminants into the natural environment that cause adverse change. Pollution can take the form of chemical substances or energy, such as noise, heat or light. Pollutants, the components of pollution, can be either foreign substances/energies or naturally occurring contaminants. Pollution is often classed as point source or nonpoint source pollution.
随便看	outer surface of hull的意思 outer surface of wood的意思 outersurface of wood的意思 outer sustentacular cell的意思 outer suture的意思 outer suture hair的意思 outer swell的意思 outersync的意思 outer syntax的意思 outer table的意思 outer table of frontal bone的意思 Outer table of skull的意思 outer tablet的意思 outer tape face的意思 outer tare的意思 outer target的意思 outer taste pore的意思 outer tast pore的意思 outer tectorium的意思 outer tensile layer的意思 outer term的意思 outer terminal of a pair of arms的意思 outer terminus的意思 outer thimble的意思 outer thin albumen的意思

Overpollution

Pollution