What is ablation?
a. wind driven snow
b. melting or wasting away of glacial ice
c. erosion by meltwater
d. collapse of glacial ice by gravity failure
e. increase in the volume of ice when it freezes
B
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The most densely populated area of Mexico is the north
Indicate whether the statement is true or false
A hypsometric curve shows that
A. oceanic trenches occupy about 30 percent of Earth's surface. B. the average ocean depth is sea level. C. a little more than 70 percent of the Earth's surface is covered by ocean. D. the highest mountains on Earth are about a kilometer high.
According to the theory of organic evolution, all living organisms are related and they descended, with some modifications, from organisms that lived in the past.
a. true b. false
Which of the following indicates that a site may be favorable for geothermal energy?
A. an area that lacks recent faulting, which can disrupt the continuity of aquifers B. a shallow magma chamber, even one that is recently solidified C. an area without recent volcanism which can disrupt the flow of groundwater D. a lack of hot springs indicating that the hot water is all trapped at depth