A. in the future B. noxious C. demands D. intensified
Phrases:
A. Water problems【T13】 1will become more intense and more complex
B. and many of these will contain chemicals which are【T14】 2
C. On the other hand, increasing【T15】 3for water will decrease substantially the amount of water available for diluting wastes
D. agriculture will have to be【T16】 4
【T17】 5Our increasing population will tremendously increase urban wastes, primarily sewage.【T18】 6Rapidly expanding industries which involve more and more complex chemical processes will produce larger volumes of liquid wastes,【T19】 7To feed our rapidly expanding population,【T20】 8This will involve ever-increasing quantities of agricultural chemicals. 【T13】