What piece of evidence supports the viral model presented in viewpoint #2 that viruses are non-living?
a) viruses are pathogens
b) viruses do not undergo mitosis
c) viruses are biochemical particles
d) viruses exist in two different states

answer. hghfhfhgdhghhf ghgfh ghhgfh ghgf hfg fghfghghfgh hh dwa dadadwa

explanation:

dawdad w

when atoms of different types of elements join together, they make molecules called compounds. water consists of compound molecules made up of 2 hydrogen atoms and 1 oxygen atom. this is why it's called h2o. water will always have 2 times the number of hydrogen atoms as oxygen atoms.

before, trains worked using the steam engine. thus, it uses heat so it is crucial to apply heat balance. the steam engine absorbs energy during the stage of boiling water. so, this is the endothermic reaction. when the steam is used to work the piston, it has to release this energy through running the train. the excess energy is released as an exhaust to the chimney. this is the exothermic process because it releases energy to the surroundings.