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At the subduction zone, the downgoing (subducting) plate is always composed of
An earthquake occurs with an epicenter in the town of New Madrid, Missouri, in the interior of the North American Plate. Where might the hypocenter (focus) of this earthquake pausibly found?
20 km beneath New Madrid
Which earthquake severity scale takes into account the type of rock that has been found?
How is the distance to the epicenter of an earthquake determined using a seismograph?
by considering the delay time between the p-wave and the slower s-wave
Intensity uses the Richter scale and is a measure of an earthquake's magnitude, t/f?
The stream gradient of most rivers is greater near the ____ than near the ____.
The discharge of a river traveling through a humid region will typically __ downstream; the discharge of a river through an arid region will typically ___ downstream.
As a flooding river spreads over a floodplain the water on the floodplain flows ___ than the water in the channel
Which of the following best describes the climatic factors that cause the low latitude deserts (around 30 degrees N or S) like the Sahara in Africa?
Dry air is descending at these latitudes, causing increased evaporation
If global warming happens then the climate belts will shift with cooler climates moving to lower latitudes (to the equator) t/f?
Which of the following is an important long-term (acting over spans of tens of millions of years) factor in global climate change?
atmospheric concentration of carbon dioxide
What is the most abundant mineral resource, non-metallic or metallic?
mineral deposits that come from water that is heated from magma
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