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