Water pollution is the contamination of water bodies (lakes, rivers, oceans, aquifers, and groundwater), very often by human activities. Water pollutionoccurs when pollutants (particles, chemicals, or substances that make water contaminated) are discharged directly or indirectly into water bodies witho...
We can reduce water pollution by treating wastewater. What is wastewater? A. Water from rivers. B. Water from lakes. C. Water that has been used and contains pollutants. D. Water from rain. 相关知识点: 试题来源: 解析 C。解析:废水是指已经被使用过并且含有污染物的水。来自河流、湖泊和...
We saw how water is actually self-cleansing. But when the quantity, concentration and frequency of waste added to the water increases these cycles breakdown. The bacteria cannot keep up with the demand of converting the pollutants into nutrients. The oxygen levels go way below normal levels ...
What are the different types of water pollution? What is meant by the term water pollution and what are several major processes that contribute to water pollution? Define pollution and mention the different types of pollution. ...
There are many different types and sources of environmental pollutants. Pollutants range in how and what part of the environment they affect, as some affect the level of noise, temperature or light, while others affect the air, soil and water....
Secondary pollutants:When pollutants in the air mix up in a chemical reaction, they form an even more dangerous chemical. Photochemical smog is an example of this and is a secondary pollutant. Why is air pollution such an important issue today?Click to find out ...
Q.1. How does groundwater clean itself? Answer – Groundwater is often clean and ready to drink. The reason behind is that soil actually filters the water. The soil has the capacity to hold onto pollutants such as living organisms, harmful chemicals and minerals—and only let the clean wat...
Another option is to install a reverse osmosis filter. Compared with the normal undersink water filter, it has an extra filter, Reverse Osmosis (RO) system. The RO system helps the filter work more efficiently, which can remove not only harmful pollutants but also total dissolved solids (TDS...
Water is said to be polluted when it is not fit for its intended uses, such as drinking, swimming, watering crops, or serving as a habitat. Polluted water can cause disease and kill fish and other animals. Some major water pollutants include sewage, chemicals from factories, fertilizers and...
What are the 3 types of water pollution? Water pollutants can be divided into three major categories:(1) substances that harm humans or animals by causing disease or physical damage; (2) substances or situations that decrease the oxygen content of water, leading to anaerobic decay and the deat...