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