| http://www.w3.org/ns/prov#value | - 3.What can be done to improve the quality of water after it has become polluted?Virtually all types of water pollution are harmful to the health of humans and animals.Heavy metals fromindustrial processes can accumulatein nearby lakes and rivers.These are toxic to marine life such as fish,shellfish subsequently to the humans who carcinogenic.Industrial waste often contains many toxic compounds tha
|
