APES UNIT 4

What is the approximate concentration of CO2, N2, and O2 in the dry air?

<1%, 78%, 21% respectively

Which of the following would be most helpful to determine the soil texture of a sample? A A pH meter and conductivity meter B A soil core kit and a seismograph C A density gradient tube and a soil triangle D A quadrat and a transect line

A density gradient tube and a soil triangle

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, as shown in the diagram below? A A divergent plate boundary exists at the Mid-Atlantic Ridge where plates move away from one another, leading to seafloor spreading. B A transform plate boundary exists at the Mid-Atlantic Ridge where two plates slide alongside one another, leading to underwater earthquakes

A divergent plate boundary exists at the Mid-Atlantic Ridge where plates move away from one another, leading to seafloor spreading.

The following question refers to the diagram below, which shows 100 ml of water being poured through a soil sample. After the water has passed through the soil, 98 ml of water is measured in the collection tray below the sample. What properties of the soil sample most influences the flow of water through the sample?

permeability

The sun's radiation provides the energy for

plant growth, ocean currents, hurricanes, and cloud formation

What are examples of divergent plate boundaries?

The Great Rift Valley of East Africa, The East Pacific Rise, and the Mid-Atlantic Ridge

The Hawaiian Islands did not form as

a convergent boundaries, divergent boundary or a transform boundary

What the the correct order of soil particles in order of increasing size?

clay-silt-sand

Most of the Earth's deserts are at approximately 30 degrees latitude, north and south, because these latitudes are characterized by

descending dry air currents

During an El Nino-Southern Oscillation event, what best describes conditions in the eastern part of the tropical Pacific Ocean (e.g., near Peru and Ecuador)?

high surface temperatures and high rainfall

Area where new crust is being created at a divergent plate boundary

in the Atlantic ocean near Canada

It is determined that a soil sample is composed of 42% sand, 15% clay, and 43% silt. According to the soil triangle, what is the soil texture of the soil?

loam

An area that exhibits a growing non-volcanic mountain chain due to uplift

near India

The water-holding capacity of soil is least likely to be affected by the addition of what

pesticides

The beneficial ozone layer is in this region of the atmosphere

stratosphere

Students want to determine the impact of soil erosion from the development of new housing. They plan to measure the density of a species of algae growing along the bottom of a river that flows through their town. The town is built in a heavily forested area, but a large area of trees along the river was recently clear-cut to allow for the construction of a new housing development, which has caused exposed soil to wash into the river. The river flows north to south through the town and is still f

A sample of water collected just downstream of the northern forest

What is a watershed?

An area of land that drains to a particular water body

The Chesapeake Bay is a watershed that is located in six states and the District of Columbia. Which of the following can cause an increase in water pollution in the watershed? A An increase in the number of grasses, trees, and shrubs near a watershed B An increase in the natural systems near a watershed C An increase in stormwater runoff in urban areas D A decrease in the number of impervious surfaces near the watershed

An increase in stormwater runoff in urban areas

What latitude experiences 24 hours of daylight on December 21?

Antarctic Circle

Based on the diagram, which of the following describes why the summer solstice in Australia occurs in December and not in June? A At this time of year, the Earth is closest to the Sun due to its elliptical path. B At this time of year, the tilt of Earth causes Australia to receive highly concentrated solar radiation. C At this time of year, the tilt of Earth causes Australia to be closer to the Sun. D At this time of year, the tilt of Earth causes solar radiation to reach Australia at a low angl

At this time of year, the tilt of Earth causes Australia to receive highly concentrated solar radiation.

The rapid rate fo this process in tropical forests results in low-nutrient soils

Decomposition

The diagram below represents how solar radiation strikes the surface of Earth differently, depending on location, during the June solstice. Which of the following combinations correctly identifies and explains the effects of the differences in the distribution of solar radiation on Earth as seen in the diagram above? A Global wind patterns are created because uneven solar radiation results in warm air at low latitudes and cool air at high latitudes, resulting in density differences between the a

Global wind patterns are created because uneven solar radiation results in warm air at low latitudes and cool air at high latitudes, resulting in density differences between the air masses.

What effect would be clear-cutting an area within a watershed have on the water quality of a river running through the watershed?

Increase in nutrient concentration in the ateres of the clear-cut watershed

El Nino and La Nina are natural phenomena associated with changing water temperatures in the Pacific Ocean. The occurrences of these events can result in changes in global weather and ocean circulation patters. What changes in the eastern Pacific Ocean food webs is typically associated with La Nina events?

Increase in phytoplankton concetrations

During a La Niña event, what environmental changes would the tropical Pacific Ocean and its surrounding landmasses most likely experience? A Increased rainfall in the eastern Pacific Ocean leading to flooding and landslides off the coast of South America B An area of high pressure forming over landmasses and increasing the chance of typhoons C Cooler ocean water in the western Pacific Ocean leading to an increased chance of wildfires D Increased upwelling off the coast of South America resultin

Increased upwelling off the coast of South America resulting in increased productivity of fisheries

The Atacama Desert lies to the west of the Andes Mountains in northern Chile. It is the oldest, most consistently arid place in the world. Based on the map above, which of the following best explains why the Atacama Desert has a consistently arid climate? A It is on the windward side of the Andes Mountains. B It is in the rain shadow of the Andes Mountains. C The cold Peru Current brings dry air to the west coast. D Compared to the east coast, it has less water available.

It is in the rain shadow of the Andes Mountains.

Based on the diagram, which of the following days in Earth's yearly orbit would have the longest period of daylight in the Northern Hemisphere? A March equinox B December solstice C September equinox D June solstice

June solstice

Peru's commercial anchovy industry would most likely be harmed during an El Niño Southern Oscillation (ENSO) event. Which of the following is the most likely explanation for the decline in anchovy during an El Niño Southern Oscillation (ENSO) event? A Acidic ocean waters kill off larval anchovies. B Less nutrient-rich water reaches surface waters, disrupting the food web. C Ocean currents move toxic contaminants from the sediments into the water column. D An increase in phosphate-based nutrien

Less nutrient-rich water reaches surface waters, disrupting the food web.

The Atacama Desert lies to the west of the Andes Mountains in northern Chile. It is the oldest, most consistently arid place in the world. Based on the map, which of the following best explains the area of the Andes Mountains that would have the greatest number of rivers? A Equal numbers of rivers would be found on both the east and west sides of the Andes Mountains because water flows downhill. B More rivers would be located on the west side of the Andes Mountains because it is the leeward side

More rivers would be located on the east side of the Andes Mountains because the trade winds are coming from the east.

Which of the following is a dependent variable in the experiment? A The type of soil B Initial mass of the soil sample C Percent change in mass of the soil sample D Amount of rainfall the soil receives

Percent change in mass of the soil sample

A group of students wanted to determine if soil texture can vary by location. Several students brought in a sample of soil from their backyards. Each student added their soil sample of equal mass to a jar with exactly the same amount of water, shook the contents so that all soil particles were suspended in the water, and left the jars covered overnight. The next morning, the soil particles had settled out into layers and students could determine the percentage of each type of particle. The resul

Percentage of each particle size in each soil sample

The Mississippi watershed is the largest in North America, draining all or part of thirty-two states in the United States and two Canadian provinces. A new apartment complex is being built on a steep slope near the source of the Mississippi River outside of Minneapolis, Minnesota. Which of the following measures should be taken to best reduce erosion at the construction site to protect the Mississippi watershed? A Add a paved surface at the top of the slope. B Remove trees and shrubs from the sl

Plant grass and shrubs on the slope.

Most volcanism in the world is associated with ___

Plate boundaries

A developer wants to develop a large tract of land near a watershed, which will require the removal of several large trees. Which of the following statements best describes the impact that the development would have on the watershed? A Removing large trees would decrease the amount of runoff in the watershed. B Removing large trees would cause an increase in temperature and keep the surrounding water and soil warmer. C Removing large trees would decrease the rate of erosion in a watershed. D Rem

Removing large trees would cause an increase in temperature and keep the surrounding water and soil warmer.

A group of students wanted to determine if soil texture can vary by location. Several students brought in a sample of soil from their backyards. Each student added their soil sample of equal mass to a jar with exactly the same amount of water, shook the contents so that all soil particles were suspended in the water, and left the jars covered overnight. The next morning, the soil particles had settled out into layers and students could determine the percentage of each type of particle. The resul

Soil samples taken from different locations

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. The average values for each sample are provided below. Which of the following is

Soil with no grass

What is the source of energy driving the circulation pattern in the Hadley cell?

Solar radiation

The vast majority of ozone (O3)(O3) is found in a thin layer due to a lack of circulation in which of the following atmospheric layers? A Thermosphere B Mesosphere C Stratosphere D Troposphere

Stratosphere

Which of the following abiotic factors, when graphed on the x-axis, leads to the curved line in the graph due to variation in the different layers of the atmosphere? A Nitrogen (N2)(N2) concentration gradients B Carbon dioxide (CO2)(CO2) concentration gradients C Temperature gradients D Ultraviolet radiation gradients

Temperature gradients

Which of the following is the best explanation for the formation of Hadley cells in the tropics, as seen in the diagram, between 30°N30°N and 30°S30°S latitude? A Heat from the ocean warms the moist air at the equator and causes it to rise because of its lower density. As the air becomes cooler, it becomes less dense and sinks. B The Sun warms the moist air at the equator and causes it to rise because of its lower density. As the warm air moves away from the equator, it cools, becomes denser

The Sun warms the moist air at the equator and causes it to rise because of its lower density. As the warm air moves away from the equator, it cools, becomes denser, and then sinks.

The Atacama Desert lies to the west of the Andes Mountains in northern Chile. It is the oldest, most consistently arid place in the world. Based on the map above, which of the following best identifies and explains the region of South America that would have a more moderate climate? A The west coast would have a more moderate climate because of the Peru Current. B The west coast would have a more moderate climate because of the Andes Mountains. C The east coast would have a more moderate climate

The east coast would have a more moderate climate because of the Brazil Current.

The map above shows the 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? A The enclosed area illustrates a convergent boundary with earthquakes and possibly volcanoes in the Hawaiian Islands. B The enclosed area illustrates a transform boundary where two plates slide past one another, resulting in earthquakes of high magnitude in the Hawaiian Islands. C The enclosed area illustrates a

The enclosed area shows a hot spot in the middle of the Pacific Plate in the Hawaiian Islands.

Which of the following layers of the atmosphere contains charged gas molecules that glow and produce light when hit by solar energy, leading to glowing gases such as the northern lights, found over 90 kilometers above Earth's surface? A Thermosphere B Mesosphere C Stratosphere D Troposphere

Thermosphere

Which of the following statements best describes the boundary between the two tectonic plates seen in the map? A The map illustrates a convergent boundary, where tectonic plates collide, and the North American Plate is sliding under the Pacific Plate. B The map illustrates a divergent boundary, where two tectonic plates are moving away from each other, creating a rift valley. C The map illustrates a transform boundary, where tectonic plates slide past each other as the Pacific Plate moves northw

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.

What 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 block precipitation from reaching the city

Which statement is best illustrated in the diagram above regarding how the Sun's energy affects the Earth's surface from June through September in the Northern Hemisphere? A The season changes from autumn to winter, daylight hours decrease, and infrared radiation is the weakest during the June solstice. B The season changes from winter to spring, daylight hours increase, and infrared radiation is the weakest during the September equinox. C The season changes from summer to autumn, daylight hours

The season changes from summer to autumn, daylight hours decrease, and infrared radiation is the strongest during the June solstice.

A group of students wanted to determine if soil texture can vary by location. Several students brought in a sample of soil from their backyards. Each student added their soil sample of equal mass to a jar with exactly the same amount of water, shook the contents so that all soil particles were suspended in the water, and left the jars covered overnight. The next morning, the soil particles had settled out into layers and students could determine the percentage of each type of particle. The resul

The student used a soil triangle to determine where the lines intersect for sand, silt, and clay for the soil sample.

Which of the following is the best explanation for the deflection of the trade winds in both hemispheres, as seen in the diagram above? A The wind is deflected east because of varying landmasses at the latitudes. B The wind is deflected east because of the waves in the ocean. C The wind is deflected west because of the mountains that the air encounters as the wind moves north or south. D The wind is deflected west because of Earth's rotation.

The wind is deflected west because of Earth's rotation.

A student group is involved in a restoration study of a nearby disturbed area. They decide to collect six soil samples and analyze them for carbon (C) and Nitrogen (N). Two of the samples are found to be very high in C and N, but the other four samples are low in both. The students also notice that the color of the two soil samples that are high in C and N is very dark. What is most likely an explanation of the data?

Two of the samples were collected from an A horizon, and the others were collected from a B horizon

During an El Niño event, farmers in the southwestern United Stated often benefit from which of the following climatic changes? A Longer and cooler summers that increase crop yield B Wetter and warmer weather that increases soil moisture C Cooler and drier conditions that help cold-weather crops D Warmer and drier weather that reduces soil erosion and flooding

Wetter and warmer weather that increases soil moisture

What exerts a major influence on Earth's overall climate?

the annual amount of solar radiation that reaches tEarth's surface, the concentrations of the specific gases in Earth's atmosphere, the distribution of land masses and oceans , in combination with Earth's topography, and the daily rotation of Earth on its axis, and its annual revolution around the sun

Hoover Dam is the largest dam in the United States, built on the Colorado River to supply hydroelectric power and flood control. What best describes a downstream environmental effect of Hoover Dam on the Colorado River watershed?

the damming of the Colorado River led to a change in stream flow, preventing river water and sediments from reaching the delta area

What should be included in a watershed map to best determine the non-point source of a pollution such as fertilizer, found in a river?

the land use upstream of the river and water quality indicators in streams that run downstream into the river

What factor is fundamentally responsible for seasons on Earth?

the tilt of Earth's axis rotation

The phenomenon causing global warming occurs primarily in this region of the atmosphere

troposphere

Most deserts on Earth are located near the 30 degree north and 30 degree south latitudes because humidity is lower at 30 degrees. The best explanation for the lower humidity is that

warm air rises at the equator, cools, and sinks at 30 degrees latitude