You deal with gravity every day. You count on it to bring you back to the ground when you jump up. You depend on it when you try
to catch a pop fly, knowing the ball will fall down. You expect it to be there, even if you don't think about it much. —A Black Hole Is NOT a Hole,
Carolyn Cinami DeCristofano
Why are the examples of gravity effective in this passage?
They give readers a mental picture of jumping on a trampoline.
They remind readers of how baseball is played.
They help readers picture how gravity affects their own lives.
They give readers a better understanding of the features of black holes.
