Chemistry · Purification: Crystallization, sublimation, distillation, differential extraction and chromatography principles and their applications
Treatment of waste water involves physical, chemical, and biological processes,
Treatment of waste water involves physical, chemical, and biological processes, which remove matter that contaminates waste water.
- A. physical
- B. chemical and biological
- C. both \( A \) and \( B \)
- D. none of the above
Step-by-step solution
The sentence explicitly states that waste water treatment involves physical, chemical, and biological processes. Option A mentions only physical processes, while option B mentions chemical and biological. Option C includes both A and B, covering all three types. Therefore, C is the correct choice.
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