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