the answer to why it was so effective is he put effective words and tone into it
The Soviets switched sides, and Italy and Japan were defeated.
He explained force and motion.
By explaining the laws, he described how force works when it affects a body and how the body is put into motion as a result of it. He explained numerous situations like that body in motion tends to stay in motion, or that when an object applies force on another object, there is a backlash and the object that inflicted motion has to get force back to it, and things like that.
The answer is B. Hope it helps! If you could vote me brainiest, that would be awesome!
The best option from the list would be that "<span>Caesar ended the practice of ambitious generals starting wars and expanding the empire," since Caesar assumed ultimate and "tight" control over the entire military establishment. </span>