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