Hey there !
The answer is C. build up of electrical charges by friction
Static electricity is a stationary electric charge, typically produced by friction, which causes sparks or crackling or the attraction of dust or hair.
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Answer:
The correct answer is "the Lewis concept of acids and bases".
Plate tectonics is the theory that Earth's crust is composed of many plates that are moving slowly over time.
Your answer is D. :)
What happens to a reactant molecules when forming product molecules is that they form different properties.