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