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Arterial Thoracic Outlet Syndrome most often results from:

A peak systolic velocity (PSV) ratio of ≥2 is associated with what level of stenosis?

Which vessel is commonly affected by Hypothenar Hammer Syndrome?

Which of the situations below describes a negative feedback cycle for temperature?  

When a planet forms in the disk of material around a protostar, what determines whether that planet will be a terrestrial or a jovian planet?

Which of the following correctly describes both the properties of  the asthenosphere and how we determined those properties?

What effect does introducing water have on mantle rock?

According to this graph, when did humans begin to have an effect on global temperatures? (You may find it helpful to use a piece of scratch paper as a straight edge to line up the temperature graph with the time scale.)

An element from column 1A on the periodic table will combine with an element from column 7A on the periodic table in a one-to-one ratio.   How many more electrons does an element in column 7A need to fill its shell?

At hot spots and diverging plate boundaries, less dense mantle rock, without any introduced water, is pushed up toward the surface. The rock stays at the same temperature. As mantle rock that is near its melting point rises toward the surface, which of the following happens?