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? A. the pH of the water
B. any occurrences of unusual odors
C. the oxygen concentration of the water
D. any changes in sizes of fish population

A

Explanation:

chemical plants can affect ph level studying water quality narrowed it down to A and C. Then putting chemical plants makes it A.

the answer is:

carbon dioxide

hi my name is ashlynn and im 15

these macromolecules could either be amino acids, proteins or nucleic acids. they are responsible for the chemical changes and reactions that affects largely the cell and its composition. take for instance the cytoplasm of the cell where these organelles are settled. these simple organelles are composed of macromolecules which ignites and catalyses different functions that enables cells, in macro-perspective in motion and metabolism. in intestines for example, metabolism happens and breaking down parts of a food to simpler compounds that are used and these nutrients delivered throughout the body and again broken down by into smaller components.