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 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) Mechanical B) Erosion C) Chemical
A) True B) False
A) False B) True
A) Repeated freezing and thawing B) Acid Rain C) sand storms
A) O, A, B, C B) A, E, I, O C) O, A, E, D
A) humus B) humans C) litter layer
A) A B) B C) C
A) Litter layer B) Sub Soil C) Top Soil
A) True B) False
A) is done on the contours of the landscape B) is a poor way to conserve soil 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) Humus B) Water C) Minerals
A) False B) True
A) transform boundary. B) convergent boundary. C) rift valley.
A) Q waves B) primary waves C) secondary waves
A) crust, mantle, outer core, inner core B) outer core, mantle, inner core , crust C) mantle, core, crust, inner core
A) rock. B) fire. C) magma.
A) layer of hot magma. B) a dense ball of iron and nickel. C) empty. |