Pollution : Definition , reason and types.

what is pollution ? how does this work ? How many types is this? What are its advantages or disadvantages? Let's find answers to all these questions . Our environment is made up of different types of components. Each component in this environment is in a certain proportion, and each component has a definite organization that maintains a balance in nature. But today the proportion of this organization is changing through human activities. The proportions of various components in the environment are changing. This change in nature which is harmful to human beings as well as other living beings is called pollution. So if we say the definition of pollution then we can express as follows - "Such a change in the environment which is harmful to the living beings is called pollution." In other words, the "undesirable change in the environment is called pollution". Or - "The deficiency or excess of the v...