In the United States, pollution that causes acid precipitation affects areas a downwind of the source
b directly above the source
c upwind from the source

Which of the following is a way that advancements in technology improve humans' ability to measure air quality and protect human health?

Can someone me choose a broad topic and area of focus i am really doing this as a tally to see which one most people pick ok water pollution global warming endangered species atmosphere for the !

Why is terracing used in southeast asian agriculture?