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