Ah how does hand washing decrease the microbes present on your hands?

it kills microbes and then removes them.
it removes viruses but not bacteria from them.
it kills the microbes but does not remove them.
it removes the microbes but does not kill them.

How does nitrogen oxides are produced and their air environment impact

If you feel pain while stretching, you should do any of the following except: a. stretch farther. b. back off the stretch. c. find an alternative. d. stop stretching.

Which of the following represents a difference between viruses and viroids? a) viruses infect many types of cells, whereas viroids infect only prokaryotic cells.b) viruses have capsids composed of protein, whereas viroids have no capsids.c) viruses have genomes composed of rna, whereas viroids have genomes composed of dna.d) viruses cannot pass through plasmodesmata, whereas viroids can.