The traditional approach to estimating fish populations is the ____ sustained yield model.

A. potential 
B. minimum
C. commercial
D. maximum
E. optimum 


Answer: D

Environmental & Atmospheric Sciences

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What type of plate boundary is depicted in this figure?



A) Oceanic divergent boundary
B) Ocean-ocean convergent boundary
C) Ocean-continent convergent boundary
D) Continental collision boundary
E) Transform boundary

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Crystallization of molten rock can produce metamorphic rocks

Indicate whether this statement is true or false.

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The entrenchment of a river into its own floodplain produces

A) river deltas. B) alluvial terraces. C) backswamps. D) natural levees.

Environmental & Atmospheric Sciences

Bitumen is a type of heavy crude found in which resource?

A. Coal gas B. Anthracite C. Tar sands D. Lignite

Environmental & Atmospheric Sciences