APES Unit 4 Review - MRQ correctly solved graded A+

APES Unit 4 Review - MRQ correctly solved graded A+Which of the following statements best describes the boundary between the two tectonic plates: the Relative motion of the North American & the Pacific Plate? - correct answer The map illustrates a transform boundary, where tectonic plates slide past each other as the Pacific Plate moves northwest and the North American Plate moves southeast. (The San Andreas Fault is a transform boundary. The plates slide past each other in opposite directions, which can result in an earthquake.) The Atlantic Ocean is expanding as a result of plate tectonics. Which of the following explanations best identifies the type of plate boundary and processes occurring at the Mid-Atlantic Ridge? - correct answer A divergent plate boundary exists at the Mid-Atlantic Ridge where plates move away from one another, leading to seafloor spreading. (The Atlantic Ocean is expanding east to west at a rate of about 2.5 centimeters annually. Divergent plate boundaries are the only type of boundary that results in seafloor spreading.) A map shows locations of known volcanoes and earthquakes. Which of the following explains what is being illustrated in the enclosed area in the northwest portion of the map? - correct answer The enclosed area shows a hot spot in the middle of the Pacific Plate in the Hawaiian Islands. (A hot spot is a short section of volcanoes without earthquakes found away from plate boundaries. The Hawaiian Islands are an example of a hot spot.) Which of the following would be most helpful to determine the soil texture of a sample? - correct answer A density gradient tube and a soil triangle (Both the soil triangle and density gradient tube are used to determine the texture of a soil sample. A soil density gradient tube, which separates particles by density, would help determine a soil profile. Using a soil triangle, the soil texture can be determined using the percentage of sand, silt, and clay from the soil profile.) Students want to determine how vegetation affects soil erosion. They collect four soil samples of equal starting mass with different types of vegetative cover, as seen in the table below. Each sample is placed in a three-sided plastic dish that can drain into a beaker and is exposed to the same amount of consistent, steady rainfall for ten minutes. The water and soil runoff are collected in the beaker and separated. Which of the following is the control group for this experiment? - correct answer Soil with no grass (The bare soil has no form of vegetation added to it. If students are testing the effects of vegetation on soil erosion, the control should remove the variable of vegetation.)