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