Question

A highly industrialized region is concerned about the declining quality of its air and water. What policies might the government adopt to clean up the region’s environment?
I. Subsidize coal energy plants
II. Restrict factory emissions
III. Control the use of fertilizers in farmland
IV. Ban the dumping of toxic materials

I and II
I and IV
II and III
II and IV
III and IV

Answer 1

II and IV appears to be the best option. II would improve air quality while III would improve the water. IV is a good option too. I doesnt really apply so you can rule out anything with I