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