also what are the advantages of having:- High melting and boiling point.-Malleable -Ductilethnx -Sonorous types of metals
When metals are taken out of the earth, they are usually found in ores. In the process of purifying the metal, it is smelted. For example, iron. When iron is smelted sulfur dioixide is a by-product. It is released into the atmosphere and causes acid rain. The acid rain plays around with the pH balances in the environment. For example, it can decrease the pH of soils making them unable to support plant life. It can also lower the pH of aquatic environments. This can kill organisms such as fish - thier larvae is killed by slight pH changes - therefore acid rain disturbs the ecological niche.
