What invasive species is an external parasite of lake trout and decimated populations for more than 20 years?

A. zebra mussel
B. alewife
C. lamprey
D. eel


Answer: C

Environmental & Atmospheric Sciences

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The cooling of the ground to produce dew is mainly the result of:

a. conduction. b. radiational cooling. c. cooling due to the release of latent heat. d. advection

Environmental & Atmospheric Sciences

What is the name of the following compound? CaCl2

A) calcium chloride B) carbon chloride C) dichlorocalcium D) calc two E) dicalcium chloride

Environmental & Atmospheric Sciences

Coral bleaching results in ________.

A. the death of many corals B. the expulsion of zooxanthellae from corals C. the weakening of corals and higher levels of disease D. All of these are correct. E. None of these is correct.

Environmental & Atmospheric Sciences

Although these are all common in our atmosphere, which one is not a greenhouse gas?

A) Carbon dioxide B) Methane C) Nitrogen D) Water vapor

Environmental & Atmospheric Sciences