A) a process that is only mechanical.. B) the movement of rock particles by wind, water, ice, and gravity C) the process that breaks rock and other substances down.
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) Mechanical B) Erosion C) Chemical
A) False B) True
A) False B) True
A) Acid Rain B) Repeated freezing and thawing C) sand storms
A) A, E, I, O B) O, A, E, D C) O, A, B, C
A) litter layer B) humans C) humus
A) A B) B C) C
A) Litter layer B) Sub Soil C) Top Soil
A) False B) True
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) convergent boundary. B) rift valley. C) transform boundary.
A) primary waves B) secondary waves C) Q waves
A) mantle, core, crust, inner core B) crust, mantle, outer core, inner core C) outer core, mantle, inner core , crust
A) rock. B) fire. C) magma.
A) empty. B) layer of hot magma. C) a dense ball of iron and nickel. |