Which of the following was the worst polluter of washingtons air during the early 1970s when people first began seriously eorryingbabout enviormental concerns? lumber mills hanford site cars and trucks factories ! k12 homie here!

Factories

Explanation:

Because it cause more pollution than any other .

. political or economical policy that isolates a country from participating in international relationships. it has been suggested that the united states participates in isolationism because of its lack of involvement in particular wars or alliances.