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


B

Environmental & Atmospheric Sciences

You might also like to view...

Justice and equity in regulating environmental quality are components of

A) natural law. B) ecosystem goods and services. C) stewardship. D) sound science.

Environmental & Atmospheric Sciences

What maximum uplift occurred on a thrust fault in Alaska during a single earthquake in 1899?

A) 25 cm B) 1.5 m C) 8 m D) 15 m

Environmental & Atmospheric Sciences

How do the "lives" of the most massive stars end? What are the two possible products of this event?

What will be an ideal response?

Environmental & Atmospheric Sciences

The concept of plate tectonics regards the Earth's ________ as broken into a number of ________ that are in motion relative to each other.

A. crust; plates B. mantle; plates C. asthenosphere; plates D. plates; lithosphere E. lithosphere; plates

Environmental & Atmospheric Sciences