Crater Lake in Oregon occupies a(n) ____
a. plug dome
b. caldera
c. syncline
d. anticline
b
Environmental & Atmospheric Sciences
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What country's main source of foreign exchange is ecotourism with over 2.4 million tourists having visited in 2013 alone
A. Mexico B. Honduras C. Costa Rica D. Ecuador
Environmental & Atmospheric Sciences
Compared to the temperature today, the past Earth's atmosphere was:
a. significantly warmer b. slightly colder c. almost the same d. significantly colder
Environmental & Atmospheric Sciences
Which processes regulate the world's current level of species diversity?
A) Speciation and migration B) Mutation and humidity C) Extinction and speciation D) Endemism and climate change
Environmental & Atmospheric Sciences
Normal sea level pressure has a value of
A) 1013.2 millibars. B) 500 mb. C) 28.50 inches of lead. D) 32.01 millibars of mercury.
Environmental & Atmospheric Sciences