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	Environmental agent
释义	Environmental agent 原声例句世界奇趣图谱 But that is passed down through genes, and isn’t caused by environmental agents. 但这是通过基因传递下来的，而不是由环境因素引起的。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	Goulette Gouley catheter Gouley meatotome Gouley metal catheter Gouley syndrome Gouley urethral dilator goulfe Goulféy Goulia goulie Goulimine gouling goulis goulka Goulmima Goulonkila Gouloukou goulp goulston goulstons Goult goultherin goulties goults goulty

Environmental agent

Pollution