A) a process that is only mechanical.. B) the movement of rock particles by wind, water, ice, and gravity C) the process that breaks rock and other substances down. D) the only process that breaks down rocks.
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) Chemical B) Deep Freeze C) Mechanical D) Erosion
A) True B) False
A) True B) False
A) erosion B) sand storms C) Acid Rain D) Repeated freezing and thawing
A) A, B, C, D B) O, A, B, C C) O, A, E, D D) A, E, I, O
A) humus B) litter layer C) humans D) mustard
A) C B) A C) O D) B
A) Litter layer B) Top Soil C) Bedrock D) Sub Soil
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) The soil is too wet B) It is packed with minerals C) It loses fertility D) It becomes the best soil for planting
A) Humus B) Water C) Minerals D) Air
A) True B) False
A) divergent boundary. B) transform boundary. C) convergent boundary. D) rift valley.
A) Surface waves B) primary waves C) Q waves D) secondary waves
A) mantle, core, crust, inner core B) crust, mantle, outer core, inner core C) outer core, mantle, inner core , crust D) crust, outer core, mantle, inner core
A) volcanic ash. B) magma. C) rock. D) fire.
A) layer of hot magma. B) a dense ball of iron and nickel. C) a layer of cooled rock. D) empty. |