What evidence is indicative that glaciers once existed in an area?
A) glacial till deposits
B) horizontally aligned sediment deposits
C) striations scratched in outcrops
D) both A and C
Answer: D
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Which fossil fuel is the world's most abundant?
A. Crude oil. B. Natural gas. C. Biomass. D. Coal. E. Wood.
Existing treaties actually allocate more Colorado River water than its typical total annual stream flow.
Answer the following statement true (T) or false (F)
Alaska's Aleutian Islands formed as part of a ________ along a ________ boundary
A) continental volcanic arc; convergent B) volcanic island arc; convergent C) continental volcanic arc; divergent D) volcanic island arc; divergent
More-developed countries (MDCs) currently emit the greatest amount of greenhouse gases per capita
Indicate whether the statement is true or false