A) the movement of rock particles by wind, water, ice, and gravity B) the process that breaks rock and other substances down. C) the only process that breaks down rocks. D) a process that is only mechanical..
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) the only way to break down rocks. D) a process that only involves water.
A) Mechanical B) Chemical C) Deep Freeze D) Erosion
A) True B) False
A) False B) True
A) Repeated freezing and thawing B) erosion C) sand storms D) Acid Rain
A) O, A, E, D B) A, E, I, O C) O, A, B, C D) A, B, C, D
A) humans B) litter layer C) humus D) mustard
A) B B) C C) O D) A
A) Litter layer B) Sub Soil C) Top Soil D) Bedrock
A) False B) True
A) is a poor way to conserve soil B) keeps the dead weeds and stalks from the previous year to return nutrients to the soil C) is done on the contours of the landscape D) tears the ground up and creates erosion problems
A) The soil is too wet B) It becomes the best soil for planting C) It loses fertility D) It is packed with minerals
A) Water B) Air C) Humus D) Minerals
A) True B) False
A) divergent boundary. B) rift valley. C) convergent boundary. D) transform boundary.
A) primary waves B) Surface waves C) secondary waves D) Q waves
A) outer core, mantle, inner core , crust B) crust, outer core, mantle, inner core C) crust, mantle, outer core, inner core D) mantle, core, crust, inner core
A) fire. B) magma. C) volcanic ash. D) rock.
A) a dense ball of iron and nickel. B) a layer of cooled rock. C) empty. D) layer of hot magma. |