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