Solve these riddles
there were 30 cows in a field, 28 chickens, how many didn't?
two potato chips were sitting on the empire state building, one jumped off, why didn't the other?

Production of electricity by water power

True or false: a writer uses ellipses to indicate an omission or that something has been left out of a direct quote.

Read the excerpt from warriors don't cry. as we approached behind them, we could see only the clusters of white people that stretched for a distance of two blocks along the entire span of the school building. my mind could take in the sights and sounds only one by one: flashing cameras, voices shouting in my ears, men and women jostling each other, old people, young people, people running, uniformed police officers walking, men standing still, men and women waving their fists, and then the long line of uniformed soldiers carrying weapons just like in the war movies i had seen. which words create the mood in the excerpt? check all that apply.