What rock would you expect to find associated with a mid-ocean ridge?

A) Sandstone
B) Granite
C) Limestone
D) Basalt


Answer: D

Environmental & Atmospheric Sciences

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What is the origin of smooth troughs (T on this figure) cutting across the landscape in the Great Lakes area?



A) The areas were covered by soft marine sediments.
B) A huge flood coming from Iowa flowed toward the Great Lakes.
C) Glaciers carved out the smooth troughs.
D) All of these are correct.

Environmental & Atmospheric Sciences

The grinding and shaping of rock surfaces by the "sand blasting" action of particles captured in the air is termed

A) traction. B) deflation. C) abrasion. D) saltation. E) deposition.

Environmental & Atmospheric Sciences

Which of the following describes the net force on air moving in a circle at constant speed?

A. overall null B. inward toward the centre of rotation C. outward from the centre of rotation D. in the direction of wind motion

Environmental & Atmospheric Sciences

The ________ was a period of drought in the 1930s in the United States that resulted in significant dust storms blowing fine sediment for hundreds of miles

A) Dust Bowl B) driftless area C) rainshadow D) basin and range

Environmental & Atmospheric Sciences