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 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) Erosion C) Chemical
A) True B) False
A) False B) True
A) Acid Rain B) sand storms C) Repeated freezing and thawing
A) O, A, B, C B) A, E, I, O C) O, A, E, D
A) humans B) litter layer C) humus
A) C B) B C) A
A) Litter layer B) Top Soil C) Sub Soil
A) True B) False
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 becomes the best soil for planting C) It loses fertility
A) Minerals B) Water C) Humus
A) False B) True
A) convergent boundary. B) rift valley. C) transform 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) fire. B) rock. C) magma.
A) a dense ball of iron and nickel. B) empty. C) layer of hot magma. |