<span>Trade routes that developed on the Arabian
Peninsula opened Arabia to goods and ideas from many parts of the world. The
route enabled the flow of products and inventions from 3 continents. It also connected
Arabia to major trade centers which had a huge commercial effect. </span>
Answer:
Total revenue equals total Expenditure in a market where transaction costs are zero. This is because what consumer pays is received in total by the supplier. That is consumers pay price quantity which is total Expenditure. Hence total Expenditure equals total revenue.
The answer is D. <span> invention of the first steel tools
Actually, this very topic is still a hot debate among scientists because the shift happens on different reasons in each region of the world.
But one thing they have in common is that Steel tools give the member of early societies the capabilities to rake uplands and cutting up crops that really useful in farming and herding.</span>
