The large, flat-topped hill with a surface area of several square km in an arid region is called:
a. Butte
b. Mesa
c. Chimney
d. Talus aprons
Answer: b. Mesa
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This causes the brilliant flash of lightning
A) dart leader. B) step leader. C) pilot leader. D) return stroke. E) blitzlicht.
What is a transmissible disease?
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Fill in the blank(s) with the appropriate word(s).