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