Which of the following would be considered a qualitative observation? a. the weight of dairy cows fed different types of grass is determined. b. the amount of chemicals in a water sample is measured accurately. c. the volume of gas produced by fermenting culture of yeast is measured. d. the flavor of carrots grown under different conditions is compared.

The correct answer is D. The flavor of carrots grown under different conditions is compared.

Qualitative observation is the observation which deals with describing the quality of a thing by observing its properties with our senses, without discussing the numerical values. Examples of qualitative observations are observing colors, texture, and shape, size flavor of a thing. Therefore, the comparison of flavor of carrots grown under different conditions is a qualitative observation.