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