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