Environmental Science, 10th Edition (Cunningham)

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Overview: Contour Plowing, p. 201

1			Why are some fields planted in regular square shapes while others have complex patterns of differently cultivated strips?
			A)	Different patterns of cultivation are due to aesthetic differences among the farmers.
			B)	The square areas are where previously irregular terrain was filled in with dirt.
			C)	Different patterns are the result of the needs of different crops.
			D)	Square fields are flat whereas complex fields are hilly.
			E)	The complex patterns are actually caused by malfunctions of the aerial sprayer planes.
2			What are the rough-textured, dark green areas?
			A)	Choppy water in lakes turned green from algal blooms
			B)	Wooded areas not under cultivation
			C)	Areas where previously cultivated crops are growing wild, endangering the native plant species
			D)	Lettuce crops
			E)	Shrubbery farms
3			What large river is directly north of these fields?
			A)	Colorado
			B)	Ohio
			C)	Columbia
			D)	Mississippi
			E)	Hudson