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) 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) Chemical B) Erosion C) Mechanical
A) True B) False
A) False B) True
A) sand storms B) Acid Rain C) Repeated freezing and thawing
A) A, E, I, O B) O, A, B, C C) O, A, E, D
A) litter layer B) humans C) humus
A) B B) A C) C
A) Litter layer B) Sub Soil C) Top Soil
A) True B) False
A) is done on the contours of the landscape B) is a poor way to conserve soil C) keeps the dead weeds and stalks from the previous year to return nutrients to the soil
A) It loses fertility B) It is packed with minerals C) It becomes the best soil for planting
A) Minerals B) Water C) Humus
A) False B) True
A) rift valley. B) transform boundary. C) convergent boundary.
A) primary waves B) Q 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) magma. B) fire. C) rock.
A) a dense ball of iron and nickel. B) empty. C) layer of hot magma. |