The direction of wind or water flow can be interpreted using _______

a) wave marks
b) ridge marks
c) ripple marks
d) mullion marks
e) burrow marks


Ans: c) ripple marks

Environmental & Atmospheric Sciences

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Eutrophication is a natural process that has been greatly stimulated by human activities.

Answer the following statement true (T) or false (F)

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What is the ratio of an element's abundance in an ore deposit to its average continental-crustal

abundance? a. enrichment multiple b. concentration factor c. economic feasibility quotient d. use per capita e. Poisson's factor

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A positive feedback mechanism:a

acts to reinforce an initial change b. acts to weaken or oppose an initial change c. will cause a positive change d. will cause a negative change

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The Basin and Range province is characterized by rugged mountain ranges bounded by faults.

Answer the following statement true (T) or false (F)

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