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