It would be A. That’s the point of a flu shot. U inject the virus to make your body know it’s bad and when It comes along again to fight it hard.
Answer:
because in biosphere when hydrosphere is disturbed means animals and plants in biosphere sometime Will miss water or watering will fails but also in atmosphere some factors like humidity and vapour will change
I believe it is C.) Tasting a solution you think is edible after creating it in the lab.
I could be wrong though.
Answer:
The answer is A, because 55+15=70, and 70-67=3