Why is a question such as "what is the world's tallest mountain? " not a good scientific question? a. the answer can easily be looked up. b. no one is interested in that question. c. we cannot collect observations about it. d. each society has a different answer to the question.

I'd say A

Explanation:

A: It can be easily looked up

B: Is more of an opinion

C: Observations can be collected

D: There is only one tallest mountain in the world

an active site is a region that is present on an enzyme where the reactants or the substrate molecules we can say bind and experience a chemical reaction. the substrate is basically a reactant whose concentration is changing and that is converting into a product after binding at the active site of an enzyme

answer; polycythemia is the correct answer;