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