<span>Psychiatrist is a qualified medical doctor with post postdoctoral degree in Psychiatry. He studies Pharmacology, medicines and has authority to prescribe Antidepressant drugs. Against that Psychologist is qualified to take care of patients psychology. He helps patient by offering extensive psychotherapy and reduces patient's mental and behavioral suffering but psychologist is not authorized to prescribed antidepressant drugs.</span>
I'd say A: tidal waves. B, C, and D don't really seem to fit for me.
I think it would be a drought.
<span>The
DNA is stored cold with the instagene matrix after boiling samples in order to
slow bacterial growth. In that way, you will greatly slow down the activity of
any remaining enzymes that could harm your DNA. Most likely it is a way of
preserving the DNA and to avoid it bacterial contamination.</span>