How did zoning laws to reduce the danger from pollution?
a) they required factories to limit their use chemicals.
b) they kept factories outside of residential neighborhoods
c) they relocated factories to rural areas faraway from cities.
d) they establish building codes to reform factory plumbing.

How did the boston massacre contribute to the writing of the declaration of independence? a. many colonists began to see the british government as a source of protection. b. many colonists began to see the british government as a supporter of free speech. c. many colonists began to oppose the british government's building of forts on the frontier. d. many colonists began to fear the british government's harsh actions toward the colonies.