professor tan studies water quality in streams near chemical plants. which is a type of qualitative data…

professor tan studies water quality in streams near chemical plants. which is a type of qualitative data that professor tan should record during these studies?\no the ph of the water\no any occurrences of unusual odors\no the oxygen concentration of the water\no any changes in sizes of fish population

professor tan studies water quality in streams near chemical plants. which is a type of qualitative data that professor tan should record during these studies?\no the ph of the water\no any occurrences of unusual odors\no the oxygen concentration of the water\no any changes in sizes of fish population

Answer

Brief Explanations:

Qualitative data describes qualities or characteristics. pH, oxygen - concentration, and fish - population size are quantitative (measurable with numbers). Unusual odors are a quality and thus qualitative data.

Answer:

any occurrences of unusual odors