Corn (maize) was first domesticated in present-day ________

A) Mexico B) Portugal C) China D) Spain E) Brazil


A

Environmental & Atmospheric Sciences

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________ 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

Environmental & Atmospheric Sciences

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.

Environmental & Atmospheric Sciences

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

Environmental & Atmospheric Sciences

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

Environmental & Atmospheric Sciences