what must be part of a quantitative observation?\n○ a change of state\n○ a change in size\n○ a number\n○ a…

what must be part of a quantitative observation?\n○ a change of state\n○ a change in size\n○ a number\n○ a color

what must be part of a quantitative observation?\n○ a change of state\n○ a change in size\n○ a number\n○ a color

Answer

Brief Explanations:

Quantitative observations involve numerical data. A change of state, change in size, and color are qualitative aspects without numbers inherently. A number is essential for a quantitative observation.

Answer:

C. a number