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