The Oregon Trail (1834-1858) began in which U.S. state?
A) Kansas
B) Missouri
C) Louisiana
D) Mississippi
E) Virginia
Answer: B
Environmental & Atmospheric Sciences
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The theory that all living organisms are descendants of different life forms that existed in the past is called:
A) organic evolution. B) astrology. C) paleontology. D) plate tectonics. E) natural selection.
Environmental & Atmospheric Sciences
Which is not a common component of explanations for mountains?
A) sedimentation B) plate-margin processes C) motion in the mantle D) vertical isostatic adjustments
Environmental & Atmospheric Sciences
The top farm product produced in the U.S. in terms of its value is ________
Fill in the blank(s) with correct word
Environmental & Atmospheric Sciences
When you shake fish food into in an aquarium, you are contributing to a(n)
A. open system. B. closed system. C. negative feedback system. D. positive feedback system.
Environmental & Atmospheric Sciences