A) a process that is only mechanical.. B) the process that breaks rock and other substances down. 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) Chemical B) Erosion C) Mechanical
A) False B) True
A) False B) True
A) Repeated freezing and thawing B) sand storms C) Acid Rain
A) O, A, B, C B) A, E, I, O C) O, A, E, D
A) litter layer B) humus C) humans
A) C B) A C) B
A) Top Soil B) Sub Soil C) Litter layer
A) True B) False
A) is done on the contours of the landscape B) keeps the dead weeds and stalks from the previous year to return nutrients to the soil 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) transform boundary. B) rift valley. C) convergent boundary.
A) secondary waves B) primary waves C) Q waves
A) outer core, mantle, inner core , crust B) crust, mantle, outer core, inner core C) mantle, core, crust, inner core
A) rock. B) fire. C) magma.
A) empty. B) a dense ball of iron and nickel. C) layer of hot magma. |