1 A) nuclear power B) oil C) wind D) wood 2 A) nuclear power B) the Sun C) coal D) the wind 3 A) solid wastes B) soil pollution C) erosion D) acid rain 4 A) type 7 B) type 2 C) type 1 D) type 4 5 A) contour plowing B) cutting down a forest C) strip cropping D) no-till farming 6 A) geothermal energy B) the greenhouse effect C) the ozone layer D) global warming 7 A) algae blooms B) smog C) food scraps D) oil spills 8 A) sewage B) plastics C) oxygen D) compost 9 A) solar energy B) fossil fuel energy C) geothermal energy D) nuclear energy 10 A) reduce, reduce, and reduce again B) reduce, reuse, and recycle C) restore rural regions D) resources, rain, and renewable 11 A) hydroelectric power B) nuclear power C) wind power D) solar power 12 A) chemical pesticides B) food C) oxygen D) carbon dioxide 13 A) all answers are correct B) pesticides and fertilizers into streams C) air pollutants out of the sky D) oil and grease off of roads and parking lots 14 A) geothermal energy B) nuclear power C) solar cells D) fossil fuels 15 A) water B) paper C) energy D) aluminum 16 A) rain water B) surface water C) groundwater D) water pollution 17 A) a greenhouse gas B) a pollutant C) an acid D) a mineral 18 A) walking B) riding a bike C) staying home D) driving alone in a car 19 A) iron B) petroleum C) aluminum D) water 20 A) smog B) radon C) greenhouse effect D) acid precipitation
.
