A) the movement of rock particles by wind, water, ice, and gravity B) the process that breaks rock and other substances down. 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) Chemical C) Mechanical
A) False B) True
A) True B) False
A) Acid Rain B) sand storms C) Repeated freezing and thawing
A) O, A, E, D B) O, A, B, C C) A, E, I, O
A) humans B) humus C) litter layer
A) A B) C C) B
A) Top Soil B) Litter layer C) Sub Soil
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 loses fertility C) It is packed with minerals
A) Humus B) Minerals C) Water
A) False B) True
A) rift valley. B) transform boundary. C) convergent boundary.
A) Q waves B) secondary 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) magma. C) rock.
A) empty. B) a dense ball of iron and nickel. C) layer of hot magma. |