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