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