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