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