The following points highlight the three important pollutants found in ground water. The pollutants are: 1. Nitrate 2. Arsenic 3. Fluoride. Pollutant # 1. Nitrate: Nitrate in ground water is derived mainly from mineralization of soil organic matter or from use of excessive nitrogen fertilisers. The content of nitrate in drinking water is safe in the range of 1-50 mg [...]
In this article we will discuss about:- 1. Meaning of Communities 2. Types of Communities 3. Characteristics. Meaning of Communities: It is now a known fact that individuals of a species together constitute a population. Various places of earth are shared by many coexisting populations and such association is called a community. A generalized definition of community is any assemblage [...]
The following points highlight the top three models of energy flow in a community. The models are: 1. Single Channel Energy Flow Model 2. Y-Shaped/two Channel Energy Flow Model 3. Universal Model. Model # 1. Single Channel Energy Flow Model: The single or linear channel energy flow model is one of the first published models pioneered by H. T. Odum [...]