Where was the largest documented volcanic eruption on the continental United States?
A. Yellowstone
B. Mount Hood
C. Mount St. Helens
Answer: A
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The rate at which extinctions occurred prior to the evolution of modern humans is called the ____.
A. E.O. Wilson postulate B. species diversity index C. living planet index D. baseline extinction rate E. background extinction rate
Which of the following human threats to the ocean may wreak havoc on corals by reducing the amount of sunlight they receive?
A) Acidification B) Aquaculture C) Increased ocean warming D) Overfishing E) Sea level rise
E-waste contains ________
A) heavy metals B) ignitables C) radioactive materials D) compostable organic compounds
Which of the following is true about Indigenous people in the Russian Arctic?
A) Dolgan people herd reindeer B) seasonal ice is integral to life C) the tundra environment influences culture D) all of the above E) none of the above