The major cause of a reduced human life span today is
a. Poverty
b. Smoking
c. Cancer
d. high cholesterol
e. Driving
A
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A stone whirled at the end of a rope follows a circular path. If the rope breaks, the stone tends to
A. follow a straight-line path. B. spiral inward. C. continue in a circular path. D. fall straight downward.
Volcanic island chains forms over hot spots when the
A) hot spot travels. B) tectonic plate carrying the volcanoes travels over the stationary hot spot. C) hot spot expands. D) all of these
Tropical cyclones produce the most intense low-pressure systems on earth. To develop and maintain this low pressure, what must happen aloft in this type of storm?
A) The storm must push the tropopause far into the stratosphere to maintain the low pressure. B) A strong jet stream flow must be present to maintain the inward flow. C) Rain must fall to force thunderstorms to collapse to keep the air circulation going. D) A strong divergent flow (outflow) aloft must keep up with, or exceed, the inflow near the surface.
Body waves are seismic waves that travel through the Earth's interior.
Answer the following statement true (T) or false (F)