Calderas are formed when ____
A)low-viscosity magma flows out into very large areas and cools
B)pyroclastic flows mix with lava flows
C)the volcanic pipe is plugged and the increase in pressure causes a huge explosion
D)part of a magma chamber drains and the mountain's summit collapses into the vacated space below
E)large explosions at the base of a volcano cause the volcano to collapse
D
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Which group is most likely to support large-scale funding of hydrogen research?
A. electric utilities B. sustainable developers C. fossil-fuel companies D. automobile manufacturers E. heating and air-conditioning manufacturers
Earth pulls the Moon. Similarly, Moon pulls Earth. We can say that
A. Earth's and Moon's pulls comprise an action-reaction pair. B. Earth and Moon pull on each other. C. both of the above D. none of the above
MB
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In which side is there more air between 0 and 1.5 km altitude?
A. on the right B. on the left
What term is not associated with Amartya Sen’s theory of justice?
a) Functionings b) Capabilities c) Pluralism d) Utilitarianism