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