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