< BackNext >PreviewMain Agents of Erosion and Deposition Chapter 12 Preview CRCT Preparation

< BackNext >PreviewMain Chapter 12 CRCT Preparation 1. On a geology research trip, Jeff finds a deposit of till that is located along the side of an active glacier. Which type of deposit did Jeff find? A terminal moraine B ground moraine C medial moraine D lateral moraine

< BackNext >PreviewMain Chapter 12 CRCT Preparation 1. On a geology research trip, Jeff finds a deposit of till that is located along the side of an active glacier. Which type of deposit did Jeff find? A terminal moraine B ground moraine C medial moraine D lateral moraine

< BackNext >PreviewMain 2. In which of the following ways is a sea arch most likely to form? A Salt water dissolves the rock until a hole is formed in the rock. B Waves from a strong storm hit the rocks and quickly form a hole in the rock. C Waves erode a sea cliff until a level platform is left at the base of the cliff. D The repeated action of waves slowly cuts through the rock where a sea cave once existed. Chapter 12 CRCT Preparation

< BackNext >PreviewMain Chapter 12 CRCT Preparation 2. In which of the following ways is a sea arch most likely to form? A Salt water dissolves the rock until a hole is formed in the rock. B Waves from a strong storm hit the rocks and quickly form a hole in the rock. C Waves erode a sea cliff until a level platform is left at the base of the cliff. D The repeated action of waves slowly cuts through the rock where a sea cave once existed.

< BackNext >PreviewMain Chapter 12 CRCT Preparation 3. A lahar forms during a volcanic eruption and moves toward a village that is 28 km away. If the lahar is moving at a rate of 92 km/h, how much time do the people in the village have to evacuate? A about 3 minutes B about 18 minutes C about 30 minutes D about 180 minutes

< BackNext >PreviewMain Chapter 12 CRCT Preparation 3. A lahar forms during a volcanic eruption and moves toward a village that is 28 km away. If the lahar is moving at a rate of 92 km/h, how much time do the people in the village have to evacuate? A about 3 minutes B about 18 minutes C about 30 minutes D about 180 minutes

< BackNext >PreviewMain Chapter 12 CRCT Preparation 4. During a field investigation, Andrea made the illustrations of various types of mass movement. Which of the following is a valid conclusion about the processes shown in Andrea’s illustrations? A A large amount of plant coverage increases the chance of each of the illustrated processes occurring. B Heavy rainfall increases the chance of each of the illustrated processes occurring. C The steepness of a hillside has no effect on the chance of each of the illustrated processes occurring. D Gravity is the only factor that determines whether each of the illustrated processes occurs.

< BackNext >PreviewMain Chapter 12 CRCT Preparation 4. During a field investigation, Andrea made the illustrations of various types of mass movement. Which of the following is a valid conclusion about the processes shown in Andrea’s illustrations? A A large amount of plant coverage increases the chance of each of the illustrated processes occurring. B Heavy rainfall increases the chance of each of the illustrated processes occurring. C The steepness of a hillside has no effect on the chance of each of the illustrated processes occurring. D Gravity is the only factor that determines whether each of the illustrated processes occurs.

< BackNext >PreviewMain 5. How does the energy from a wave in Australia reach the west coast of the United States? A Convection currents carry the energy across the ocean. B The energy travels in wave trains across the ocean. C The energy travels in undersea currents across the ocean. D Water particles carry energy and form waves close to the coast. Chapter 12 CRCT Preparation

< BackNext >PreviewMain Chapter 12 CRCT Preparation 5. How does the energy from a wave in Australia reach the west coast of the United States? A Convection currents carry the energy across the ocean. B The energy travels in wave trains across the ocean. C The energy travels in undersea currents across the ocean. D Water particles carry energy and form waves close to the coast.

< BackNext >PreviewMain Chapter 12 CRCT Preparation 6. Which of the following areas would be most strongly affected by wind erosion? A pine forest B rocky beach C desert D grassland

< BackNext >PreviewMain Chapter 12 CRCT Preparation 6. Which of the following areas would be most strongly affected by wind erosion? A pine forest B rocky beach C desert D grassland

< BackNext >PreviewMain Chapter 12 CRCT Preparation 7. Which of the following best describes the process responsible for the formation of sand? A rocks + waves = sand B wind + waves = sand C beach + longshore current = sand D surf + wave train = sand

< BackNext >PreviewMain Chapter 12 CRCT Preparation 7. Which of the following best describes the process responsible for the formation of sand? A rocks + waves = sand B wind + waves = sand C beach + longshore current = sand D surf + wave train = sand

< BackNext >PreviewMain Chapter 12 CRCT Preparation 8. Where would you be most likely to observe saltation on a sand dune? A slip face B crest C windward slope D in any area of the dune

< BackNext >PreviewMain Chapter 12 CRCT Preparation 8. Where would you be most likely to observe saltation on a sand dune? A slip face B crest C windward slope D in any area of the dune

< BackNext >PreviewMain Chapter 12 CRCT Preparation 9. The table shows the average wave periods for four rocky beaches along a coastline. Which beach would be subject to the most erosion due to wave action if the wave heights are approximately the same at each beach? A Beach AC Beach C B Beach BD Beach D

< BackNext >PreviewMain Chapter 12 CRCT Preparation 9. The table shows the average wave periods for four rocky beaches along a coastline. Which beach would be subject to the most erosion due to wave action if the wave heights are approximately the same at each beach? A Beach AC Beach C B Beach BD Beach D

< BackNext >PreviewMain Chapter 12 CRCT Preparation 10. Jekyll Island and Cumberland Island are two of a series of barrier islands that are located along Georgia’s Atlantic coastline. Along these barrier islands, the beaches that face east tend to erode away, and south-facing shorelines tend to grow. Explain how this pattern of shoreline erosion and deposition might occur.

< BackNext >PreviewMain Chapter 12 CRCT Preparation 10. Answer - Full credit answers should include the following points: Sand movement follows the longshore current, which move in the same direction as the angle at which waves approach a beach. Erosion on east-facing shorelines and deposition on south-facing shorelines indicate a wave direction from north or northeast. Waves that approach the shoreline at a slight angle push sand along the beach, which erodes sand from the shoreline and deposits the materials in south-facing areas.

< BackNext >PreviewMain Chapter 12 CRCT Preparation 11. A continental glacier once covered areas that are now the northern United States. What kinds of landscape features caused by this glacier would you expect to see in the northern U.S.?

< BackNext >PreviewMain Chapter 12 CRCT Preparation 11. Answer - Full credit answers should include the following points: Much of the landscape would have been smoothed and flattened by the glacier. Ridges of glacial till called moraines would be present at the former front and sides of the glacier. Flatter areas of till in most areas would be present, formed from unsorted materials that were deposited beneath the glacier. Areas of stratified drift from glacial streams would be found. Kettle lakes in an outwash plain would also be found.