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) the process that breaks down rock and other substances at the Earth's surface. C) a process that only involves water.
A) Erosion B) Chemical C) Mechanical
A) True B) False
A) True B) False
A) sand storms B) Acid Rain C) Repeated freezing and thawing
A) O, A, E, D B) A, E, I, O C) O, A, B, C
A) humans B) humus C) litter layer
A) C B) A C) B
A) Top Soil B) Litter layer C) Sub Soil
A) False B) True
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) Water B) Minerals C) Humus
A) False B) True
A) rift valley. B) convergent boundary. C) transform boundary.
A) secondary waves B) Q waves C) primary waves
A) outer core, mantle, inner core , crust B) mantle, core, crust, inner core C) crust, mantle, outer core, inner core
A) fire. B) rock. C) magma.
A) a dense ball of iron and nickel. B) empty. C) layer of hot magma. |