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) Erosion B) Chemical C) Mechanical
A) True B) False
A) False B) True
A) sand storms B) Repeated freezing and thawing C) Acid Rain
A) O, A, E, D B) A, E, I, O C) O, A, B, C
A) humans B) humus C) litter layer
A) B B) C C) A
A) Litter layer B) Top Soil C) Sub Soil
A) False B) True
A) keeps the dead weeds and stalks from the previous year to return nutrients to the soil B) is a poor way to conserve soil C) is done on the contours of the landscape
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) rift valley. C) convergent boundary.
A) Q waves B) primary waves C) secondary waves
A) crust, mantle, outer core, inner core B) mantle, core, crust, inner core C) outer core, mantle, inner core , crust
A) rock. B) magma. C) fire.
A) empty. B) layer of hot magma. C) a dense ball of iron and nickel. |