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) the process that breaks down rock and other substances at the Earth's surface. B) the movement of rock particles by wind, water, ice, and gravity. C) a process that only involves water.
A) Mechanical B) Chemical C) Erosion
A) True B) False
A) True B) False
A) Repeated freezing and thawing B) sand storms C) Acid Rain
A) O, A, B, C B) O, A, E, D C) A, E, I, O
A) litter layer B) humus C) humans
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) keeps the dead weeds and stalks from the previous year to return nutrients to the 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) Minerals B) Humus C) Water
A) False B) True
A) transform boundary. B) convergent boundary. C) rift valley.
A) secondary waves B) primary 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) magma. B) rock. C) fire.
A) empty. B) a dense ball of iron and nickel. C) layer of hot magma. |