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