name two human activities that have affected the quality of runoff?

1 ⤊

2007-10-27 19:29:42 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Biology

-road consruction
-mining

2007-10-27 19:34:41 · answer #1 · answered by Lutfor 3 · 1⤊ 0⤋

Agriculture - fertilizers and salts run off the fields.

Mining - metals and other stuff can run off the tailings.

2007-10-28 17:22:48 · answer #2 · answered by Anonymous · 0⤊ 0⤋

la mineria, la explotacion forestal y basura

2007-10-28 03:29:49 · answer #3 · answered by omar v 3 · 0⤊ 0⤋