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) Chemical C) Mechanical
A) False B) True
A) False B) True
A) sand storms B) Acid Rain C) Repeated freezing and thawing
A) O, A, B, C B) A, E, I, O C) O, A, E, D
A) litter layer B) humans C) humus
A) C B) A C) B
A) Sub Soil B) Top Soil C) Litter layer
A) True B) False
A) is a poor way to conserve soil B) is done on the contours of the landscape C) keeps the dead weeds and stalks from the previous year to return nutrients to the soil
A) It is packed with minerals B) It loses fertility C) It becomes the best soil for planting
A) Water B) Humus C) Minerals
A) True B) False
A) convergent boundary. B) transform boundary. C) rift valley.
A) primary waves B) secondary waves C) Q waves
A) outer core, mantle, inner core , crust B) mantle, core, crust, inner core C) crust, mantle, outer core, inner core
A) magma. B) rock. C) fire.
A) layer of hot magma. B) empty. C) a dense ball of iron and nickel. |