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) the movement of rock particles by wind, water, ice, and gravity. B) the process that breaks down rock and other substances at the Earth's surface. C) a process that only involves water.
A) Chemical B) Mechanical C) Erosion
A) False B) True
A) True B) False
A) Acid Rain B) sand storms C) Repeated freezing and thawing
A) A, E, I, O B) O, A, B, C C) O, A, E, D
A) humus B) litter layer C) humans
A) B B) A C) C
A) Sub Soil B) Litter layer C) Top Soil
A) True B) False
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
A) It is packed with minerals B) It becomes the best soil for planting C) It loses fertility
A) Water B) Humus C) Minerals
A) False B) True
A) rift valley. B) convergent boundary. C) transform boundary.
A) primary waves B) secondary waves C) Q 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. |