88) In Maryland, soil preservationists produced a new composite map by combining in their GIS
A) soil quality, environmental, and economic maps.
B) maps on soil quality and proximity to market.
C) dry harvest climate, wet harvest climate, climate change, and soil maps.
D) maps on habitat for endangered species.
E) soil quality, environmental, and political maps.
89) What is the purpose of crop rotation?
A) maintaining fresh products for market
B) maintaining price supports
C) maintaining the fertility of fields
D) responding to shifting consumer preference
E) reducing transportation costs
90) A principal practice of sustainable agriculture is
A) agribusiness-oriented land management.
B) a “green revolution” in the use of chemicals.
C) the preference for livestock over crops.
D) the use of pesticide-resistant seed.
E) careful land management