A) a process that is only mechanical.. B) the movement of rock particles by wind, water, ice, and gravity C) the only process that breaks down rocks. D) the process that breaks rock and other substances down.
A) the process that breaks down rock and other substances at the Earth's surface. B) the movement of rock particles by wind, water, ice, and gravity. C) a process that only involves water. D) the only way to break down rocks.
A) Mechanical B) Deep Freeze C) Chemical D) Erosion
A) False B) True
A) False B) True
A) Acid Rain B) Repeated freezing and thawing C) erosion D) sand storms
A) A, B, C, D B) A, E, I, O C) O, A, E, D D) O, A, B, C
A) litter layer B) mustard C) humans D) humus
A) C B) A C) B D) O
A) Litter layer B) Bedrock C) Sub Soil D) Top Soil
A) False B) True
A) is done on the contours of the landscape B) is a poor way to conserve soil C) tears the ground up and creates erosion problems D) keeps the dead weeds and stalks from the previous year to return nutrients to the soil
A) The soil is too wet B) It loses fertility C) It is packed with minerals D) It becomes the best soil for planting
A) Humus B) Water C) Minerals D) Air
A) False B) True
A) rift valley. B) divergent boundary. C) transform boundary. D) convergent boundary.
A) Surface waves B) secondary waves C) Q waves D) primary waves
A) mantle, core, crust, inner core B) outer core, mantle, inner core , crust C) crust, mantle, outer core, inner core D) crust, outer core, mantle, inner core
A) fire. B) volcanic ash. C) magma. D) rock.
A) empty. B) layer of hot magma. C) a layer of cooled rock. D) a dense ball of iron and nickel. |