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