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