Using charcoal or resins to filter out harmful solids is a ____ method.
A) chemical
B) physical
C) biological
D) geological
E) physiological

Question

Quizplus · Accepted Answer

Using charcoal or resins to filter out harmful solids is a physical method, as it involves physically removing particles from a substance. Chemical methods involve changing the composition of the substance, biological methods involve the use of living organisms, geological methods involve the study of the earth and its components, and physiological methods involve the study of how the body works.

Using Charcoal or Resins to Filter Out Harmful Solids Is