<p> G More organic matter in the humus layer than in deeper layers Weathering & Erosion Quiz H More clay in the humus layer than Name ______in deeper layers J More sand-sized particles in the 1) humus layer than in deeper layers The breakdown of rocks and minerals into smaller 4) particles without a change in composition is called — igneous intrusion F 5) G chemical precipitation H mechanical weathering J metamorphic foliation</p><p>2)</p><p>Which layer of the soil profile would be affected the most by weathering and In the jar shown, a sample of erosion? soil was mixed with water and F 1 then allowed to G 2 settle for 24 hours. The jar H 3 serves as a model for what J 4 process? F Evaporation of water from a muddy pond G Formation of soil from parent material 6) H Deposition of sediment in a lake bed Limestone chips dissolve Erosion of rock particles by water J after they are placed in a beaker of dilute acid. 3) Which geologic process is Which of these best this most similar to? describes forest soil? F Faulting F More rock fragments in the humus G Folding layer than in deeper layers H Weathering J Subduction</p><p>7)</p><p>11)</p><p>8) Organic matter in soil is made from — F weathered parent rock G decayed plants and animals _ H acid rain J carbon dioxide</p><p>9) What is located beneath soil layers? A Bedrock _ B Humus C Lava D Tundra</p><p>10) 12) 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</p><p>16)</p><p>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.</p><p>17) 14) 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</p><p>18) 19)</p>