Why can't you use visible light to "see" molecules? ?

Because the light has to be focused on a certain molecule to see it even through a microscope, and the light we see isn't focused on anything in particular.

The need activity of the nurse is to suction discharges from the trachea. current treatment approaches in the pressing consideration facilities or crisis offices are corticosteroids and nebulized epinephrine; steroids have demonstrated advantageous in extreme, direct, and even gentle croup. in the clear instances of croup, anti-microbials are not endorsed, as the etiology is viral