Corn (maize) was first domesticated in present-day ________
A) Mexico B) Portugal C) China D) Spain E) Brazil
A
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What types of rocks would be most common in the small volcano in this photograph?
A) Scoria and other vesicular basalt
B) Basalt mostly formed in lava flows
C) Felsic and intermediate lava flows
D) Welded tuff and tephra
E) None of these are correct.
Which of the following cannot be attributed to the effects of Earth's rotation?
A) daylength B) deflection of the winds C) deflection of the ocean currents D) rise and fall of tides E) latitudinal variations in net radiation
Hell's Canyon, a narrow, steep-sided valley, on the Idaho- Oregon border is an example of a valley formed by what?
A) Tectonic activity B) Glaciation C) Flowing water D) Volcanic activity
________ is defined as the drop in elevation of the stream surface divided by the distance the water flows
Fill in the blank(s) with correct word