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