Answer:
Classification systems vary with the taxonomist.
Vaccines are injected into the bloodstream :)
Answer:
the fault H is first then layer G and F
because the block is deformed not even layers, so means that the rocks accumulated in the fracture or fault under pressure.
Well, no.
Chicken pox are contagious, and acne is not. Also you would be very sick if you had chicken pox.
In appearance, I wouldn't go as far and say that they are alike, or similar as Chicken pox spread across the whole body.
Hope this helps!