Inches of mercury is something that would only be used in America. Elsewhere in the world, the mercury height would be in millimeters, or about 760mm (76cm)
Mercury has a density of about 13.56 g/cm3, or in other words, each cm of mercury weighs about 13,300 dynes. So 760mm of mercury weighs 1,013,000 dynes. 1 mb is 1 dyne/cm2, so what is the air pressure in mb?
A) 1,000,000 mb B) 1013 mb C) 760 mb D) 1.013 mb
B
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Sinusoidal projections operate based on the premise that
A) distortion should be minimized in polar areas and maximized in equatorial areas. B) the map can be interrupted in areas that are not important to show on a particular map and distortion can be minimized in areas that are more important to show accurately. C) parallels of latitude and meridians of longitude should intersect at right angles. D) the globe is projected onto a cone, with minimized distortion along the arc or arcs where the cone intersects with the globe.
A cratonic ____________________ is a succession of rocks bounded by unconformities. Fill in the blank(s) with the appropriate word(s)
Compared to the global demand for energy, renewable energy sources can ________
A) meet about half of the demand B) exceed the demand C) meet only the demand for electricity D) only meet a small percentage of the demand E) meet all of the demand
The prime meridian and the 180th meridian are opposite halves of the same great circle
Indicate whether the statement is true or false.