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2 answers

Look at the Natomas in California.
They are proof of the effects of mining on the environment. Changed, for ever, and not for the better.

2006-08-29 23:18:27 · answer #1 · answered by soxrcat 6 · 0 0

I don't know mate, seems it is a complex subject.
Maybe some study about traffic control in big cities ?
Sorry, I tried my best there.

2006-08-28 03:12:25 · answer #2 · answered by StéphanDeGlasgow 5 · 0 0

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