A) the process that breaks rock and other substances down. B) a process that is only mechanical.. C) the movement of rock particles by wind, water, ice, and gravity
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) True B) False
A) False B) True
A) Acid Rain B) sand storms C) Repeated freezing and thawing
A) O, A, E, D B) A, E, I, O C) O, A, B, C
A) litter layer B) humus C) humans
A) B B) C C) A
A) Top Soil B) Litter layer 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 loses fertility C) It becomes the best soil for planting
A) Minerals B) Water C) Humus
A) True B) False
A) transform boundary. B) rift valley. C) convergent boundary.
A) Q waves B) primary waves C) secondary waves
A) crust, mantle, outer core, inner core B) outer core, mantle, inner core , crust C) mantle, core, crust, inner core
A) magma. B) rock. C) fire.
A) a dense ball of iron and nickel. B) layer of hot magma. C) empty. |