Question

Question 2 (1 point) What has caused air quality in the United States to improve / get better since the 1950's? Question 2 options: More cars on the road More industrial production Pollution control devices More favorable weather patterns

Answer 1

I'd say More industrail production Pollution control devices.

Step-by-step explanation:

If more cars are on the road its pollutes the air which makes acid rain which is like a storm which are bad for flying

We also don't have to look at weathe patterns because we can fly over the now.