1.

There_are_protozoa_present_in_the_water._Its_name_is_Dinobryen._What_is_the_dose_of_copper_sulfate_required_to_kill_it?

A. 0.02ppm
B. 0.3ppm
C. 0.5ppm
D. 0.8ppm
Answer» C. 0.5ppm


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