APES Semester 1 26 Practice Questions

Which of the following scenarios does NOT show density-dependent factors in a population?

A population of 30,000 caribous was killed by a flood

Unsustainable agricultural practices such as tilling, slash-and-burn farming, and overgrazing can cause a decrease in which of the following?

Arable land

Which of the following biomes would have the highest albedo?

Arctic tundra

Many farmers prepare their fields for planting by using tractors or tools to till their fields. Tilling involves overturning the soil in order to disrupt weeds and pests while making the soil easier to seed. How might a no-till approach to farming benefit the environment?

By reducing the erosion of topsoil

Which of the following types of farming methods is represented by the information above?

Concentrated animal feeding operations

What mechanism causes these sets of locations share the same climates even though their geographic location is thousands of miles apart?

Cool ocean currents cause Locations 1 and 2 to experience hot, dry summers and humid, cool winters, while warm ocean currents cause Locations 3 and 4 hot, humid summers and mild winters

Desertification can be caused by all of the following EXCEPT

Crop rotation

Which of the following identifies an organism that releases oxygen as a waste product?

Decomposers

A farmer is concerned about the growth of the crops because their water supplies are running low. The farmer is worried about the evaporation of excess water and wants to ensure their crips are getting enough water to grow. The farmer is prepared to meet any cost if it means long-term success.

Drip irrigation

The environment provides resources, such as clean water, habitat for fisheries and wild game, timber, and pollination of food crops. Additionally, the environment is responsible for cycling nutrients, moderating weather, cleaning water and much more. These benefits are referred to as

Ecosystem services

Less solar radiation reaches Earth's surface at higher latitudes, in part because it must pass through more of the atmosphere. In what way does the atmosphere interfere with insolation?

Energy is reflected, absorbed, and scattered by atmospheric gases

A bean fly is a metallic black fly that eats the leaves of bean crops. Farmers have found that repellant intercropping works well to prevent bean flies from damaging their bean crops. What is a probable application of this method?

Farmers should plant several rows of leeks between each row of production crop that repel bean flies away from the field of crops

Which of the following BEST describes Germany's population profile?

Germany is a developed country with a low birth rate

Which of the following is LEAST likely to be an environmental consequence of replacing a natural forest with a tree plantation?

Increased flooding

Which of the following is LEAST associated with a genetic bottleneck?

Over time the genetic diversity will rebound with little trace of the bottleneck event

The MOST common cause of salinization of agricultural soils over time is

Overirrigation

In the Pacific Ocean, a new volcanic landmass is rising from the depths. As it breaks the surface of the water, it is igneous rock in its most basic composition. Which process begins with the physical and chemical weathering of rock that eventually makes it into soil?

Primary succession

All of the following are examples of Tragedy of the Commons EXCEPT

Redefining a country's borders to include more mountainous terrain

Which of the following types of soil will have the BEST drainage?

Sandy loam

Which of the following BEST describes the relationship between solar radiation and latitude pictures in the diagram above?

Section B of the diagram depicts more intense solar radiation at the equator due to a smaller surface area of light striking the surface

The Rio Teno watershed is located in central Chile and spans both a mountainous region as well as more flat highlands. What characteristic of this watershed most directly impacts the speed of water flow through the watershed?

Slope

The size of an island and its distance from the mainland is important in determining which of the following?

Species richness

Which of the following processes may result in the formation of a volcanic island chain?

Subduction leading to melting of the subducted plate

The image above compares the effects of pesticide usage after one generation to the effects after several generations. Which of the following is the BEST conclusion for the effect of pesticide usage according to the image above?

The first usage of pesticide shows a large decrease in pest population, then the population increases over time due to an increase in resistant pests

Wheat is the most widely grown crop across the globe. Annually, more than 600 million tons can be produced, and of that total, 95% is used for bread. Breeders of wheat have genetically engineered some wheat crops to be resistant to one of its major insect predators, the Hessian fly. What is an economic factor that farmers should consider when adopting the use of genetically modified. pest-resistant crops such as this new Hessian fly-resistant form of wheat?

The genetic manipulation of crops can lead to a loss of genetic diversity within the crop leaving it at risk for mass losses

Genetically modified organisms, or GMOs, provide all the following advantages EXCEPT

the use of genetically modified organisms can prevent pests from developing resistance