Examlex
List one way in which cyanobacteria facilitated the evolution of life on Earth and one way in which they have continued to be extremely important to life on Earth.
Backed by Gold
Refers to a currency that is guaranteed by gold reserves, meaning its value is supported by the amount of gold held by the issuing authority.
Paper Currency
Money in the form of paper notes issued by the government or central bank, representing a legal tender for transactions.
Medium of Exchange
A medium of exchange is a system or object that is widely accepted as payment for goods and services.
Transaction Costs
The expenses incurred when buying or selling goods or services, including costs of gathering information, negotiating, and enforcing contracts.
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