Many trilobites were ocean-bottom scavengers. so when an ocean-bottom trilobite fossil is found, what does this tell scientists? a. there was only one type of trilobite. b. there used to be an ocean where the fossil was found. c. the trilobite crawled out of the ocean onto land and died there. d. the trilobite died and sank from the ocean surface to the ocean floor.

Which of the following statements about the economic consequences of the civil war is not accurate. a. inflation caused prices to rise by 80% in the north. b. because southern farms cannot process enough food for everyone in the south the union navy allowed food shipments from britain. c. to pay for all of the food supplies and arrangements that were necessary for the union army congress instituted an income tax. d. business boomed in the north as factories and farms always had a market for their products.