Which of the following statements best explains why deforestation leads to a loss of biodiversity? a. as trees are cut down, less water vapor is released into the atmosphere. b. as habitats are destroyed, animals and plants may become extinct. c. as land is cleared for grazing, valuable topsoil can wash away more easily. d. as forests are managed for sustainability, some tree species may be lost.

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.