Question

how did scientific research affect the widespread use of ddt in control mosquito - infested areas?
a. research showed that ddt was not effective in reducing the mosquito population, so scientists researched other methods.
b. research showed that ddt was more expensive to produce than other chemical pesticides, so money was spent on cheaper options.
c. research showed that ddt accumulated as a toxin in other wildlife, so the us environmental protection agency was established.
d. research showed that most people did not feel comfortable with the widespread use of ddt, so the government stopped research funding.

Explanation:

DDT is a pesticide with known environmental impacts, particularly bioaccumulation in wildlife (a key scientific finding). The U.S. EPA banning DDT due to such research directly links scientific evidence to societal policy change, which aligns with how research influences society regarding DDT use. Other options focus on effectiveness, cost, or public opinion, but option C specifically connects research on ecological harm to a regulatory (societal) response.

Answer:

C. Research showed that DDT accumulated as poison in other wildlife, so the U.S. Environmental Protection Agency was established.