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