What is the origin of smooth troughs cutting across the landscape in the Great Lakes area?
A. The areas were covered by soft marine sediments.
B. Glaciers carved the smooth troughs.
C. A huge flood coming from Iowa flowed toward the Great Lakes.
D. All of these choices are correct.
Answer: B
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Which of the following is not a way glaciers move downhill?
A) The glacier can slide over bedrock. B) A glacier can move by internal shear and flow. C) The upper parts of glaciers can fracture. D) The lower part of a glacier flows faster than the upper part.
A flowerless, seed-bearing plant; a plant whose seeds are lodged in exposed positions on cones
or on other reproductive organs:a. echinoid d. angiosperm b. sponge e. crinoid c. gymnosperm
Which of the following is true of trypsin?
A) It does not affect any peptide bonds. B) It hydrolyzes all peptide bonds. C) It hydrolyzes peptide bonds to leucine and phenylalanine. D) It hydrolyzes peptide bonds to arginine and lysine.
Rwanda and Burundi have had tragic disputes between the majority __________ population and the wealthier ruling class, minority __________ population
Fill in the blank(s) with correct word