Question

any two material sources and 10 lines on each of the sources​

Answer 1

Explanation:

1) Coins - Coins are usually metal or an alloy, or sometimes made of manmade materials. They are usually disc shaped. Coins made of valuable metal are stored in large quantities as bullion coins. Other coins are used as money in everyday transactions, circulating alongside banknotes.

2) Pillars - Pillars are frequently used to support beams or arches on which the upper parts of walls or ceilings rest. In architecture, "pillars" refers to such a structural element that also has certain proportional and decorative features.