Author Question: Substances that do not decay naturally in the environment are ____________________. Fill in the ... (Read 161 times)

s.tung

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Substances that do not decay naturally in the environment are ___________________ _.
 Fill in the blank(s) with correct word

Question 2

Heavy metals that can have toxic effects include __________, __________, __________, and __________.
 Fill in the blank(s) with correct word



ngr69

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Answer to Question 1

nonbiodegradable

Answer to Question 2

lead; mercury; cadmium; selenium



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