For the purposes of the Ocean Health Index, ‘chemical’ refers to a compound or substance that has been purified or manufactured by humans. It does not include the many chemicals that marine plants, animals and microbes produce as part of their normal life processes. More than 100,000 chemicals are

5 Chemical Weathering Examples and How They Occur

Chemical ReactionsA chemical reaction is a process where a set of substances undergo a chemical change to form a different substance.Where do chemical reactions occur?You may think that chemical reactions only happen in science labs, but they are actually happening all the time in the everyday world