bacteria dont need to mutate, thats why they evolve. bacteria doesnt need to develop resistance. this can also make bacteria very dangerous though, virus's can evolve and change after a cure is created that cannot be affected by treatment.
Answer:
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The activation of the sense organs by source of physical energy is known as sensation
1 - The most common emission and byproducts that are generated by burning coal are carbon dioxide, nitrogen oxides and dioxides and CCPs in genearl (coal combustion products).
2 - Mercury is a heavy liquid metal with some toxical properties. When ingested (most commonly trough water) can be fatal [for further info search Mercury Poisoning]. Something I should also point out is that most of the contaminated water sources are residual waters.
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its C. both Allen and Rose are correct. hope this helped
