Answer:
Agriculture allowed people to stay in one place, and increased food production caused the population density to expand far beyond levels that could be sustained by hunting and gathering alone. This growth in population density provided a critical mass of people to sustain and spread contagious infectious diseases.
Answer:
Production is the manufacturing of the item. Distribution is the transportation, promotion, or delivering of the item.
Examples:
Phones are produced in a factory. They are useless though unless they are distributed to the stores so that they can be sold to consumers.
The same can apply to commercial crops. Crops are all produced commercially and then distributed to thousands of grocery stores so that they can be sold.
Answer:I think it is c
Explanation:the sun is very hot so it automatcily rules out a b it cant be d because the sun has to high magnetic pull there are no spots that have less or more so it has to be c or e