Ethylene glycol and propylene glycol are organic compounds with alcohol functional groups. The term âglycolâ is used when there are two hydroxyl groups present in neighboring carbon atoms. Their molecular formulas are different; thus they have some different physical properties.
A therapist and psychologist may differ in the degrees they received in college. A therapist can be a psychologist, psychiatrist, or counselor, but a psychologist is an exclusive psychologist but can also counsel and do other responsibilities.
1 Instead of the behavioral approach adopted by psychologists, a counselor tries to encourage the patient to direct the treatment session.  In a broader sense, both psychologists and counselors are specialists who try to solve personal problems of people though adopting different approaches.