APES Unit 4
Which of the lettered choices in the soil profile above represents the region with the greatest concentration of organic material?
A
Which soil horizon is best developed in areas with dense vegetation, such as forests and grasslands, since the horizon consists of decomposing leaves and other plants?
A
Which of the following would be the best control sample for the study?
A sample of water collected just downstream of the northern forest
Area where new crust is being created at a divergent plate boundary
B
Of the following, which is the most likely composition of the soil sample?
Clay: 10%, Silt: 10%, Sand: 80%
Area that exhibits island arcs
E
Which of the following statements correctly explains the tectonic plate activity on the West Coast of the United States?
Earthquakes occur at the San Andreas Fault when stored energy is released from locked plates.
El Nino and La Nina are natural phenomena associated with changing water temperatures in the Pacific Ocean. The occurrence of these events can result in changes in global weather and ocean circulation patterns. Which of the following changes in eastern Pacific Ocean food webs is typically associated with La Nina events?
Increased phytoplankton concentrations
Which of the following correctly characterizes one of Earth's atmospheric layers?
Layer D is the thermosphere, where auroras are found.
Based on the graph, which of the following can be concluded about the latitudes of the two locations?
Location 1 is close to the equator, and location 2 is in the northern hemisphere
Which of the following is the most abundant gas by volume in the atmosphere?
N2
Which of the following soils is best suited to grow corn?
Sandy loam because it has large amounts of sand and less than 20% clay
Based on the diagram, which of the following changes are most likely to occur in the central and eastern tropical pacific during el nino?
The Peruvian current weakens, leading to warmer-than-average sea-surface temperatures.
Which of the following areas receives the most intense solar radiation at the time of year shown in the diagram, and why?
The Tropic of Capricorn, because this latitude is nearly horizontal to incoming solar radiation.
Based on the diagram, which of the following statements best explains why the climate of the west coast of africa is drier than that of the east coast of the united states, even though they are located at similar latitudes?
The cold ocean currents off Africa absorb heat from land and therefore cool the atmosphere.
Which of the following correctly describes the season and length of day at the Tropic of Cancer at the time of year shown in the diagram?
The northern hemisphere is tilted away from the Sun so it is winter at the Tropic of Cancer and daylight is less than twelve hours per day.
Which of the following best explains why City B regularly receives less precipitation than City A?
The rain shadow effect causes City B to be drier because the mountain blocks precipitation from reaching the city.
Which of the following best explains why the lower portion of the troposphere is warmer than the upper portion?
The surface of Earth absorbs sunlight, heating the lower portion of the troposphere more than the upper part.
Which of the following is the correct order of soil particles in order of increasing size?
clay - silt - sand
The low anchovy catch in 1998 was most likely the result of
reduced ocean upwelling along the coast.
Based on the soil texture triangle, which of the following would describe soil that was 25% clay, 25% silt, and 50% sand?
sandy clay loam
Which of the following is the source of energy driving the circulation pattern labeled C in the diagram?
solar radiation
Which of the following is the best method for preventing soil erosion in an agricultural area?
terrace farming
