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