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