Operation Silent Prairie was a simulation of an attack generating an epidemic of foot-and-mouth disease.
Lets go through all of the options.
-E-cigarettes are addictive. This is true. This is also a negative fact about e-cigs. This answer is correct.
-E-cigarettes do not contain tobacco derivatives. While this may be true in some cases, This answer is a positive fact about e-cigs. It is incorrect.
-E-cigarettes contain nicotine This is true. This is also the reason for why they are addictive. This answer is correct.
-E-Cigarette flavorings often contain harmful chemicals. This is true, and also a negative fact. This answer is correct.
-E-cigarettes do not damage your lungs. This is also true, but not a negative fact. This answer is incorrect.
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They will be come distant and lose some interest of there favorite things.