Matching water purification processes to purposes Steps:

• Recall filtration physically traps suspended particles, matching X: remove solids.
• Recall chlorination adds chlorine to kill pathogens, matching W: disinfection.
• Recall activated carbon adsorbs organic impurities, matching Y: removal of tastes and odors.
• Recall desalination removes dissolved salts via methods like reverse osmosis, matching Z: removal of salts.

Why A is correct:

• Activated carbon targets organic compounds for taste and odor removal (Y), while desalination eliminates salts (Z), aligning with standard purification definitions.

Why the others are wrong:

• B: Desalination assigned to Y (tastes/odors), but it primarily removes salts, not organics.
• C: Chlorination assigned to X (remove solids), but it disinfects chemically, not by filtration.
• D: Filtration assigned to W (disinfection), but it removes solids physically, not pathogens.

Final answer: A