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