4) Weathering & Erosion Quiz Name ___________________ 5) 1) The breakdown of rocks and minerals into smaller particles without a change in composition is called — F igneous intrusion G chemical precipitation H mechanical weathering J metamorphic foliation 2) Which layer of the soil profile would be affected the most by weathering and erosion? F1 G2 H3 J4 In the jar shown, a sample of soil was mixed with water and then allowed to settle for 24 hours. The jar serves as a model for what process? F Evaporation of water from a muddy pond G Formation of soil from parent material H Deposition of sediment in a lake bed J Erosion of rock particles by water 3) Which of these best describes forest soil? F More rock fragments in the humus layer than in deeper layers G More organic matter in the humus layer than in deeper layers H More clay in the humus layer than in deeper layers J More sand-sized particles in the humus layer than in deeper layers 6) Limestone chips dissolve after they are placed in a beaker of dilute acid. Which geologic process is this most similar to? F Faulting G Folding H Weathering J Subduction 7) 11) 8) Organic matter in soil is made from — F weathered parent rock G decayed plants and animals _ H acid rain J carbon dioxide 9) What is located beneath soil layers? A Bedrock _ B Humus C Lava D Tundra 10) 12) 17) 13) Why does erosion not occur on the moon? A The rock surface of the moon is too hard. B There is no animal life. C There is no wind or rain. _ D The gravitational pull of the moon is too weak. Which of the following is an example of chemical weathering? A Splits in a rock due to tree roots B Pulverized rock resulting from a landslide C A rock broken into chunks after being carried by rapidly flowing water D The dissolving of limestone by acid Rain 18) 14) 15) One method of lessening the environmental impact of strip mining is to — A mine only nontoxic materials B only mine during the evening hours C feed the animals displaced by the mine D require that the landscape and vegetation of mined lands be restored 16) 19)