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