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.
Answer:
Americans have often prided themselves on their rich diversity.
Explanation:
Workers were drafted, so they had to join the war and leave or quit their jobs. People also volunteered to serve, and so people who didn't get drafted or join, took their places.
If a country is not able to produce some goods, it has to buy them somewhere else and bring them into the country - this is called importing, so the correct answer is b.
Selling goods outside of the country is called exporting and giving them away would be called donating.
Poll responders regularly exhibit <u>which of the following</u>, resulting in inconsistency in poll results.
Responding positively to positive phrases.
Responding negatively to negative phrases.
Giving socially approved responses to questions.
