Unit 5 APES

Corn can be grown at a rate of 1,000 kcal per hectare, and it takes 20 times more land to produce beef than it does to produce corn. Which of the following equations would correctly calculate the amount of land needed to produce 10,000 kcal of beef? Responses

(B) 1 ha/1,000 kcal corn x 20 kcal corn/1 kcal beef x 10,000 kcal beef

A family of five recently replaced its 5-gallon-per-minute showerheads with water-saving 2-gallon-per-minute showerheads. Each member of the family averages 8 minutes in the shower per day. In a 30-day period, how many fewer gallons of water will the family use with the new showerheads?

3,600

A group of students want to increase the amount of water infiltration around the property of their urban high school by replacing all the existing impermeable walkway pavers with permeable ones. The school board will not move forward with any property changes unless the students conduct an experiment and collect evidence to help prove that their proposed suggestion to increase water infiltration will be effective. The students create two identical pallets using soil taken from the school's Which of the following identifies and describes the equipment needed to best determine the amount of water that infiltrated the soil?

A ruler should be used to measure the level of water above the pavers in both pallets immediately after pouring the water over the pavers and immediately after the one-hour wait time.

Which of the following is a direct economic advantage associated with aquaculture?

Aquaculture produces large amounts of seafood for human purchase and consumption year-round.

Which of the following is a commercially used method for harvesting trees and is most likely to lead to a fragmented landscape with serious impacts on biodiversity?

Clear-cutting

Which of the following is an unintended environmental consequence of aquaculture?

Contamination of surrounding water by organic waste

A vegetable farmer wishes to switch to a combination of trees and vegetables (agroforestry) on several hectares of her land to reduce erosion and to diversify what she grows. She needs to assess whether her land can produce as much income by growing two crops instead of one. The farmer estimates that the new tree crop would cover 40 percent of her fields, with the vegetable crop covering the other 60 percent. Which equation should she use to calculate how much total income she would get from using the new two-crop plan?

D(($ income trees/ha)x total ha x .4) +(($income veg/ha) x total ha x .6) =Agroforestry income

Which of the following best illustrates the concept of the tragedy of the commons?

Depletion of an aquifer by regional farmers

Which of the following is the best illustration of the tragedy of the commons?

Depletion of fishing stocks in the North Atlantic

Which of the following methods of agricultural irrigation results in the loss of the least amount of water by evaporation? Responses

Drip irrigation

Which of the following scenarios best explains the concept of the tragedy of the commons?

Fish are shared resources, and as the fishing industry competes for the fish, the resource extraction is no longer sustainable.

Of the following, which constitutes the greatest percent of domestic use of water in the United States?

Flushing toilets

Which of the following is a disadvantage associated with the genetic modification of crops?

Genetically modifications can decrease the genetic diversity of crop species.

The development of dangerous strains of disease organisms represents a significant consequence of which of the following agricultural practices?

Incorporating antibiotics into the feeding regimens of densely concentrated livestock

The chart above compares the daily water use per person to the price of water in selected countries. Which of the following conclusions can be correctly drawn using only the data in the chart?

Increased water use is generally correlated with lower water prices.

Which of the following best describes an environmental advantage of urbanization?

Individuals living in cities usually have a lower transportation carbon footprint than individuals living in rural areas.

Which of the following is true of the Ogallala Aquifer?

It underlies the United States High Plains and is being depleted by overuse.

As part of a school project, a group of high school students will attempt to determine whether increasing the species diversity of the edible plants in pastures used for grazing livestock will provide an economic benefit to ranchers. Which of the following hypotheses, if supported by experimental results, best demonstrates an economic benefit to the ranchers?

Pastures with the highest diversity of plant species will have the highest net primary productivity.

Other than potential negative health effects on humans, which of the following is a disadvantage of using chemical pesticides to eliminate crop pests?

Pesticides may harm organisms other than the target crop pests through biomagnification in the food web.

Overuse of groundwater in coastal areas would most likely result in which of the following?

Saltwater intrusion

Which of the following best achieves the goal of providing wood products for humans while preserving biodiversity?

Selective cutting of large areas of old-growth forest

Farmers need to make many decisions about how they grow their crops. One of these decisions is whether to use synthetic fertilizer or organic fertilizer, such as manure. An advantage of using synthetic fertilizer instead of organic fertilizer is that...

Synthetic fertilizer is water soluble and will easily run off in water.

Which of the following describes a fundamental characteristic of the green revolution in food resources? Responses

The development of new strains of crops with higher yields

A group of students want to increase the amount of water infiltration around the property of their urban high school by replacing all the existing impermeable walkway pavers with permeable ones. The school board will not move forward with any property changes unless the students conduct an experiment and collect evidence to help prove that their proposed suggestion to increase water infiltration will be effective. The students create two identical pallets using soil taken from the school's property and install impermeable pavers similar to those found on the Which of the following is the dependent variable in the study?

The infiltration rate of the water

A group of students want to increase the amount of water infiltration around the property of their urban high school by replacing all the existing impermeable walkway pavers with permeable ones. The school board will not move forward with any property changes unless the students conduct an experiment and collect evidence to help prove that their proposed suggestion to increase water infiltration will be effective. Which of the following is the independent variable in the study?

The type of pavers used in the pallets

One example of the tragedy of the commons occurs when trees are harvested from tropical rain forests without any regulations. Which of the following best describes why this is an example of the tragedy of the commons?

Timber producers remove as much timber as possible as cheaply as possible.

Which of the following solutions would help decrease flood frequencies and flood sizes that are caused by urbanization?

Using new, more permeable materials for roads and sidewalks

Which of the following is the best example of the tragedy of the commons?

Water pollution from oil rigs concentrated in the Gulf of Mexico

Compared with people in developing countries, people in industrialized countries are more likely to eat

beef

Factors contributing to the rise in world hunger include all of the following EXCEPT

increasing consumption of vegetable protein in place of meat protein