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