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