Both civilizations built canals to water crops.
Answer:
its B : marginal cost
Explanation:
In economics, marginal cost is the change in the total cost that arises when the quantity produced is incremented by one unit; that is, it is the cost of producing one more unit of a good.
The answer is A. the need for field workers. there was no gold in virginia, if you want soldiers hire them there is no need to make them slaves and need for craftsmen not really.
Jem<span> is very surprised and shocked when the jury says that Tom Robinson is guilty. He thought Atticus had surely won the trial for Tom and they were going to win.</span>