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