The contour lines drawn on a 500 mb chart are lines of constant
a. wind speed.
b. pressure.
c. density.
d. wind direction.
e. temperature.
ANSWER: b
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The global human population
A) consumes fewer resources in a year than Earth can provide. B) has decreased its resource consumption in the last decade. C) would consume fewer total resources if everyone in the world consumed as many resources as the average American. D) needs 1.5 Earths to sustain its current rate of consumption.
Which lab tool would be most useful to a palynologist?
a. microscope b. telescope c. scale d. Geiger counter e. oscilloscope
What are some of the useful products humans obtain from volcanoes? What will be an ideal response?
Which of the following is NOT happening in the area shown by this figure?
A. eruptions onto the seafloor B. release of water by a descending plate C. faulting D. plates are moving apart E. melting of rising mantle