Answer:
A. the type of material that was used to make it.
Explanation:
Money can be defined as any recognized economic unit that is generally accepted as a medium of exchange for goods and services, as well as repayment of debts such as loans, taxes across the world.
Simply stated, money is an asset used for the purchase of goods and services.
Commodity money simply refers to money that derives its value from the commodity with which it is created from.
Basically, the type of material with which money is made is what gives commodity money its value because it is based on the perception of the buyer and seller of goods and services.
This ultimately implies that, commodity money has value based on the type of material that was used to make it. Some examples of commodity money are gold, diamonds, silver, cowry, cocoa, copper, and other valuable resources.
Answer:
Packaging that changes color if the product inside is expired.
A water-filtering straw.
A pancake printer.
A mat with a built-in alarm clock.
A pendant that turns speech into text.
A toothbrush that cleans your teeth by itself.
"Smart" glasses.
A glass that turns water into wine.
With the concept of zero, we could express math (and by extension, everything) with just one concept: of there being something. This was contrasted with there not being something.
This presence/absence of something is very easily implementable in mechanical terms, which contributed to the development of hardware. So: the concept of 0 made our calculations easily physically implementable.
See back then farming was really important and they weren't really industrialized uuntil after the civil war.
