Composite volcanoes are also known as ____________________ and are composed of both lava flows and ____________________ material
Fill in the blank(s) with correct word
stratovolcanoes, pyroclastic
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Since the shift to floating exchange rates, what activity has become a big business?
A) international stock markets B) purchases using the internet C) trading in currencies D) international mortgage banking E) land speculation
All of the following about equinoxes is true, except
A) the solar declination is zero degrees. B) both hemispheres receive the same amount of insolation. C) every place has 12 hours of daylight. D) the solar angle at the North Pole is 90 degrees.
What type of volcano is Mount Rainier?
A. caldera B. shield C. scoria cone D. composite
A 1/1,000,000 species per year extinction rate, which is the estimated average rate of extinction in the history of life on the earth, is called ____ extinction.
A. background B. local C. ecological D. biological E. total