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) Mechanical B) Chemical C) Erosion
A) False B) True
A) True B) False
A) Repeated freezing and thawing B) Acid Rain C) sand storms
A) O, A, E, D B) O, A, B, C C) A, E, I, O
A) litter layer B) humus C) humans
A) C B) A C) B
A) Sub Soil B) Litter layer 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 is packed with minerals B) It becomes the best soil for planting C) It loses fertility
A) Water B) Minerals 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) mantle, core, crust, inner core B) crust, mantle, outer core, inner core C) outer core, mantle, inner core , crust
A) rock. B) fire. C) magma.
A) empty. B) a dense ball of iron and nickel. C) layer of hot magma. |