Balance these equations. ____ H2 (g) + ____ N2 (g) ? ____ NH3 (g)
A) 2, 2, 3
B) 2, 2, 5
C) 3, 3, 2
D) 3, 1, 2
D
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The feature at location 3 is probably
A) a divergent boundary.
B) a convergent boundary.
C) a subduction zone.
D) where two plates are colliding.
E) not a plate boundary.
What evidence reveals that water may once have been abundant on Mars? What will be an ideal response?
The acquisition of data about Earth's surface from a satellite orbiting the planet or from another long-distance method is
A) GIS. B) GPS. C) remote sensing. D) aerial photography. E) USGS.
What are Rossby waves?
A) weather disturbances triggered by monsoon wind reversal B) paths taken by surface winds as they encounter mountains C) large movements of warm water associated with El Niño D) wave patterns in the upper level westerlies and polar jet stream