GROUP D. THE LANDS 

 Answer three questions from this group 



8. Explain fully the development of meanders and the production of cut-offs 



in an old river. Why are the ends of the ox-bow lake so quickly filled ? 

 Make a transverse profile of an ideal floodplain. Why are many flood- 

 plains of the world great agricultural regions ? 



9. What is the relative age of the Appalachians, the Rocky Mountains, and the 



Coast Range ? On what evidence do you base your answer ? Show how 

 the Appalachians affected the progress of settlement. 



10. Along the Connecticut River in Vermont several distinct terraces above 



the present floodplain may be seen; explain the origin of these terraces. 

 Along the river at several places falls occur, and at these falls great 

 paper mills have been built. Explain the location of this industry at 

 these particular places. 



11. Define ten of the following: residual soil, avalanche, pothole, base level, 



sand dune, Cordillera, water gap, peneplain, caldera, till, drumlin, sedi- 

 mentary rock, water table, fault, anticline. 



12. Draw a contour map with: 



a) An irregular coast line. 



b) back of this a plain rising to an elevation of forty feet and about one mile 

 wide. 



c) back of the plain a mountain with a conical peak four hundred feet high 

 and a ridge about three miles long and approximately three hundred feet 

 high, cut by a stream in a gorge. 



Contour interval, twenty feet. Scale about one inch to the mile. 



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