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