What is 'Currency'. Currency is a generally accepted form of money, including coins and paper notes, which is issued by a government and circulated within an economy. Used as a medium of exchange for goods and services, currency is the basis for trade. Generally speaking, each country has its own currency.
- Use alternatives to these toxic materials -. Mothballs are made of white crystals of two very dangerous chemicals, para-dichlorobenzene (1,4-dichlorobenzene) and/or naphthalene. Both chemicals are solid at room temperature but produce very strong, toxic vapors. Mothballs are sold as flakes or pressed into cakes.
dmfoss/iStock/Getty Images. The purpose of mothballs is controlling clothes-eating moths, but some people use them to control other pests, including rodents, snakes and other insects. One end result is a lingering odor that's as bad for you as it smells.