本题目来源于试卷: Freshwater Resources，类别为 IB环境系统与社会
[单选题]
Deduce which of the foll yz8; 0n te4y pjjd:/4w t6bcakqd90ntow8x-(l bp0( jbtuut(ma ing water enhancement strategies would be most effective for Less Economically Developed Ctb ulu(tp0( j-ax8m(b ountries (LEDC's)?
A. Desalination plants
B. Artificial recharge of aquifers
C. Rainwater harvesting schemes
D. Use of large-scale reservoirs
参考答案: C
本题详细解析:
Options A and B would not be the moovr ,fe4ehxg8ql)wjm6 cp ge39r3 v7+st effective due to high expense, high technological requirements, and in the case of A, access to salt water.
Option C is the most cost effective, most accessible and requires the least technology, so the most suited to LEDCs and the correct choice.
Option D is incorrect as it requires access to large rivers fe xrg9v+ 3j)g7 p6req, 3cv4om 8elhwand often needs to use technology and materials to create dams. It would also require lands to be flooded which may reduce LEDC economic essentials such as agriculture and pasture land.
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