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