ผู้เขียน: Dominic E. Jefferson

Despite the fact that water covers two-thirds of the Earth’s surface, it is surprisingly vulnerable to human influence and activity. Marine ecosystems receive large amounts of a variety of pollutants …

Polymers are substances containing a large number of structural units joined by the same type of linkage. These substances often form into a chain-like structure. Starch, cellulose, and rubber all po …