The difference between a Hawaiian style eruption and a Strombolian style eruption is the composition

of the magma. Indicate whether the statement is true or false.


F

Environmental & Atmospheric Sciences

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All of the following can result from a strong El NiƱo event EXCEPT:

A) the suppression of the Southern Oscillation. B) weakening or reversing of the Pacific tradewinds. C) depletion of fish populations as upwelling is suppressed along the western coast of South America. D) abnormally high air pressure over Indonesia.

Environmental & Atmospheric Sciences

Oceans cover slightly less than half of the earth's surface

Indicate whether the statement is true or false

Environmental & Atmospheric Sciences

What type of magmas have high silica content and tend to cause violent volcanic eruptions?

A. intermediate B. mafic C. felsic D. andesitic E. lava

Environmental & Atmospheric Sciences

Nellie and Phil experience weightlessness

A. in a freely-falling elevator. B. momentarily when they step off a high stair. C. in the absence of a supporting surface. D. all of the above

Environmental & Atmospheric Sciences