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