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