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) Erosion B) Chemical C) Mechanical
A) False B) True
A) False B) True
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) humus B) litter layer C) humans
A) B B) C C) A
A) Litter layer B) Sub Soil C) Top Soil
A) False B) True
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 loses fertility B) It becomes the best soil for planting C) It is packed with minerals
A) Minerals B) Humus C) Water
A) False B) True
A) transform boundary. B) rift valley. C) convergent boundary.
A) secondary waves B) primary waves C) Q waves
A) crust, mantle, outer core, inner core B) outer core, mantle, inner core , crust C) mantle, core, crust, inner core
A) rock. B) magma. C) fire.
A) layer of hot magma. B) a dense ball of iron and nickel. C) empty. |