apes unit 4

A farm is experiencing extensive crop loss due to high rains causing overly saturated soils. Which of the following approaches would best help the farmer alleviate the problem?

Amending the soil with sand to increase the permeability of the soil

Which of the following is a biome found at 30° N and 30° S as seen in the diagram?

Deserts

Earth currently rotates on an axis at an angle of 23.5 degrees. If that axis changed to 20 degrees, so that the axis was closer to vertical, which of the following would be expected to occur?

Earth would experience a change in seasonal timing and length.

Corn is a crop that grows best in soil that drains well.

High amounts of sand and low amount of clay allows water to drain well.

Which of the following properties is most likely associated with soils that contain more sand-sized particles than soils that contain more clay-sized particles?

High permeability

Which of the following changes in eastern Pacific Ocean food webs is typically associated with La Niña events?

Increased phytoplankton concentrations

A team at a university in Pennsylvania has concerns about the health of streams in a watershed because of the various land uses in the area. There has been an increase in road repair work, and the area has many dairy farms. Which of the following would be most effective at preventing sediment runoff into the streams of the watershed?

Maintain zones of grass at least 100m100m wide on the sides of streams in the area.

This layer of Earth's atmosphere contains the ozone layer that absorbs the sun's ultraviolet rays.

Stratosphere

Where is the ozone layer located?

Stratosphere

Which of the following best describes why understanding a watershed and its boundaries is important in designing housing developments along a river?

Surface water and stormwater runoff will drain downstream within the watershed boundaries, so it is important to understand the flow of water through the watershed.

Which of the following is the best method for preventing soil erosion in an agricultural area?

Terrace farming

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 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.

Which of the following should be included in a watershed map to best determine the non-point source of a pollutant, 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

El Niño, a periodic warming of ocean surface waters, occurs in which of the following regions?

Tropical East Pacific

in which of the following atmospheric layers does most weather occur?

Troposphere

Which of the following explains the variable that would be the best for students to measure to determine the direct impact of soil erosion caused by the construction project on the river?

Turbidity, because a decrease in water clarity would indicate an increase in soil erosion.

Which of the following best describes a transform boundary?

an area where two tectonic plates slide past one another

The primary cause of Earth's seasons is the

constant tilt of Earth's rotational axis with respect to the plane of its orbit around the Sun

During an El Niño-Southern Oscillation event, which of the following best describes conditions in the eastern part of the tropical Pacific Ocean

high surface temp high rainfall

Which of the following statements best explains why the average temperature of London is warmer than that of Calgary in December?

oceanic currents warm the atmosphere in London.

This layer of Earth's atmosphere contains the fewest molecules of the layers shown, and the low density of gas leads to very few molecules transferring heat to an object. In this layer, ultraviolet radiation causes photodissociation of molecules, creating ions.

thermosphere

Most deserts on Earth are located near the 30° north and 30° south latitudes because humidity is lower at 30°. The best explanation for the lower humidity is thatwarm air rises at the equator, cools, and sinks at 30° latitude

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