A) the movement of rock particles by wind, water, ice, and gravity B) the process that breaks rock and other substances down. C) a process that is only mechanical..
A) a process that only involves water. B) the process that breaks down rock and other substances at the Earth's surface. C) the movement of rock particles by wind, water, ice, and gravity.
A) Mechanical B) Chemical C) Erosion
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) litter layer B) humus C) humans
A) C B) B C) A
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) Minerals B) Humus C) Water
A) True B) False
A) transform boundary. B) rift valley. C) convergent boundary.
A) Q waves B) primary waves C) secondary waves
A) outer core, mantle, inner core , crust B) mantle, core, crust, inner core C) crust, mantle, outer core, inner core
A) fire. B) magma. C) rock.
A) empty. B) a dense ball of iron and nickel. C) layer of hot magma. |