What type of aggregate is often used in aggregate hydroponic systems?

Awatershed is a piece of land that drains water into a particular stream, lake, or river. which of the following factors often negatively impacts the water quality in a watershed? a.) wetlands b.) pollution c.) irrigation d.)rainfall

Which country is the smallest island of the greater antilles

Solve for r in the formula v = ir, when i = 5 and v = 15.