Question

which of the following eventually resulted in niagara falls love canal neighborhood being declared a federal emergency in 1978?
○ oil drilling in the area had destroyed its ecosystem.
○ a neighborhood there had been built over a toxic dump.
○ a large amount of iron, zinc, and lead mining had poisoned the water supply.
○ there had been an accident at a nearby nuclear power plant.

Explanation:

The Love Canal incident involved a neighborhood built over a toxic waste dump (by Hooker Chemical Company, which buried toxic chemicals there). Oil drilling, mining (for iron/zinc/lead), or a nuclear accident were not the causes. The toxic dump led to health issues and the federal emergency declaration.

Answer:

B. A neighborhood there had been built over a toxic dump.