B. It provides information about why certain measurements are made in an experiment
From experience, to be able to have background research helps in the design of an experiment because it would tell you what is being measured in a experiment. Without the background information, my whole class got lost on what to do until my teacher told us what we had to measure and how we could measure the experiment.
A because I learned that last year in science
It would be commensalism- a symbiotic relationship where one organism benefits while the other remains unaffected.
Answer:
its "A" water flowing over a tall cliff
Explanation:
