Hypothesis.
A Hypothesis is an estimation of what might happen and the student's observation before moving on to investigate.
Answer:
Which of the following water filtration methods requires the use of a membrane or filter? Reverse Osmosis
Explanation:
Reverse Osmosis has to do with a solute using a membrane that allows such with the help of hydrostatic pressure
I believe the answer would be Letter
B. Psychology
Explanation:
base on the person opinion
