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