13.-0356. Creativity.

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13.-0355. Creating and enabling environment.
13.-0354. Coverage.
13.-0353. Cost-effectiveness analysis - ( CEA ).
13.-0352. Cost-benefit analysis - ( CBA ).
13.-0351. Corrosion.
13.-0350. Cooling water.
13.-0349. Cooling tower.
13.-0348. Conveyance.
13.-0347. Conveyance loss.
13.-0346. Convey or conveyances.
13.-0345. Conventional gravity sewer.
13.-0344. Conventional biological treatment.
13.-0343. Controlled tipping.
13.-0342. Controlled open defecation..
13.-0341. Contour bunds.
13.-0340. Continuos stirred-tank reactor.
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13.-0339. Contingent valuation.
13.-0338. Contingency planning.
13.-0337. Contamination.
13.-0336. Contamination risk.
13.-0335. Contaminant migration.
13.-0334. Contaminant.
13.-0333. Container-based toilet.
13.-0332. Container-based sanitation.
13.-0331. Contact time.
13.-0330. Contact dermatitis.
13.-0329. Consumptive use.
13.-0328. Consumers.
13.-0327. Constructed wetlands.