A) the process that breaks rock and other substances down. B) the movement of rock particles by wind, water, ice, and gravity C) a process that is only mechanical..
A) the process that breaks down rock and other substances at the Earth's surface. B) a process that only involves water. C) the movement of rock particles by wind, water, ice, and gravity.
A) Erosion B) Mechanical C) Chemical
A) True B) False
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) humans B) litter layer C) humus
A) A B) C C) B
A) Sub Soil B) Top Soil C) Litter layer
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) Humus B) Water C) Minerals
A) False B) True
A) transform boundary. B) rift valley. C) convergent boundary.
A) Q waves B) secondary waves C) primary waves
A) outer core, mantle, inner core , crust B) crust, mantle, outer core, inner core 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. |