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