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