the importance of water
Allah says in His Holy Book of Allah: "We made from water every we see how important water per what is on the ground, and the size of the many benefits that countless and the impossibility of life without him, man, animals and plants in the need permanent him, as well as important it is to keep the heat balance of the Earth, and despite the urgent human need for water sources remain exposed permanently contaminated, and it appears that the pollution of water through changes in the installation of some of the component, including the elements, which in turn may be directly or indirectly changes directly, as this often happens pollution by industrial waste, animal, and human being in it or throw it in the pouring of its branches.
The causes of water pollution
Sewage, which in turn are exposed to contamination by harmful microbes about it why being contaminated sources of water, where the disposal of some countries as usual at rivers and lakes directly, or in places close to the ground water, so it spills after the time of the contamination of wells groundwater.
Industrial waste is one of the most important pollutants of water, which in turn includes food waste, synthetic fibers, and chemical residues resulting from the factories, where these residues lead to injury of water pollution due to all of the fat, and blood, and alkalis, dyes, chemicals, oil, and vehicles Petroleum, to along with the toxic side salts, such as salts, arsenic, and mercury.
Radioactive materials: one of the most the most dangerous types of pollutants, water and most dangerous remnants of atomic plants, reactors, and nuclear tests when they reach the water more or less where they may is disposed of neglect and ignore disposers international laws that require burial in the same prestigious properties on certain depth lead boxes, or leakage, which sometimes happens.
Human waste, which are issued, as is evident from its name due to the human factor.
Natural pollution is a drift that winning materials leading to pollution and some of the waste, the oceans and seas.
Fertilizers AGRO: contaminated water and hazardous materials due to the capacity and access to groundwater, and therefore pollution, along with the ability of these fertilizers to move through each of the drainage and flooding to the bodies of water in all its forms and surface water.
Pesticides also causes pollution, where the flow of these pesticides with wastewater to the banks, leading to water pollution along to the killing of many marine organisms in addition to fish.
