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Which of the following is NOT a problem that has been often caused by placer mining?

Pramila

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6 years ago

Which of the following is NOT a problem that has been often caused by placer mining?

Which of the following is NOT a problem that has been often caused by placer mining?
A) poisoning rivers with hydrogen sulphide
B) poisoning rivers with mercury
C) poisoning rivers with cyanide
D) polluting water with large amounts of suspended debris
E) causing erosion

Textbook

Environment: The Science Behind the Stories, Canadian Edition

Environment: The Science Behind the Stories, Canadian Edition

Edition: 3^rd

Authors: Withgott, Laposata, Murck

Read 57 times

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Rohcodom

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Pramila Author

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6 years ago

Brilliant ツ

Fleury

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this is exactly what I needed

vanna2014

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Just got PERFECT on my quiz

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