Use the Accompanying Figure to Answer the Following Question

Multiple Choice

Use the accompanying figure to answer the following question
-Which of the following is an effect of high selenium concentrations in stream water?

A) Selenium mining companies will want to extract the selenium and thus damage the aquatic ecosystem.
B) There are no negative effects from selenium, but high selenium levels generally indicate high levels of substances that are harmful.
C) The selenium will react with potassium isocyanate, resulting in cyanide poisoning of organisms living in the stream.
D) Selenium causes birth defects in fish.
E) Selenium reacts with oxygen, thus suffocating fish and other aquatic organisms.