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