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.
Mothballs are labeled for control of clothes moths only. The labels generally instruct you to place them in an airtight container with at-risk clothing. Naphthalene and paradichlorobenzene are fumigants, vaporizing at room temperature -- the toxic fumes smother the clothes moths which are unable to get away. Because the active ingredients in mothballs are insecticides, it is not only dangerous, it's illegal to use them in any way not specified on the label.