When air is heated enough so that it is warmer than the surrounding air, it is ________.
Fill in the blank(s) with the appropriate word(s).
Environmental & Atmospheric Sciences
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Which of the following is the simplest possible hydrocarbon?
A. HC 
CH
B. CH4
C. H2
D. C2H6
E. H2C 
CH2
Environmental & Atmospheric Sciences
Coriolis deflection is to the _____ in the Northern Hemisphere and to the _____ in the Southern
1.left; left 2.left; right 3.right; left 4.right; right
Environmental & Atmospheric Sciences
The mineral shown in this photograph is a sulfide mineral and commonly forms cube-shaped crystals. What mineral is it? 
A. hematite B. dolomite C. halite D. gypsum E. pyrite
Environmental & Atmospheric Sciences
The angular inclination of the Earth's axis with respect to a line perpendicular to the plane of the ecliptic ________
A) varies through the year B) is 0° C) is 23.5° D) is 66.5° E) is 90°
Environmental & Atmospheric Sciences