What does water pollution mean?
WE borrowed our big word pollution from the Romans of old who spoke Latin. Their word was borrowed from the Greeks who came before them. The olden words meant to make something dirty or unclean. Our word pollution is the act of making something dirty or unclean. Polluted water is unfit for human use and is most likely unfit for animals. Some polluted water is harmful even to plants. The purest water in the world can become polluted and useless. Pollution occurs when decaying plants and animals or filth and sewage wastes are added to clean water. It also happens when strong acids and other dangerous chemicals are dumped into our seas and streams. Water pollution is a big problem of our times, and there are reasons why. Our population is growing and more people need pure water. More new things are invented and more factories are needed to make them. The factories find new and still newer ways to do their work. These operations often use strong chemicals or produce troublesome waste mater
Water pollution is the introduction into fresh or ocean waters of chemical, physical, or biological material that degrades the quality of the water and affects the organisms living in it. This process ranges from simple addition of dissolved or suspended solids to discharge of the most insidious and persistent toxic pollutants (such as pesticides, heavy metals, and nondegradable, bioaccumulative, chemical compounds). “http://www.botany.uwc.ac.za/SCI_ED/grade10/ecology/conservation/poll.
