U3C2

Famine is defined as an insufficient food supply in a specific area. Of the following, which factor directly contributes to famine?

Extended drought

Which of the following is a benefit of using fertilizers?

Fertilizers add nutrients, like nitrogen, to the soil.

Which of the following is a negative effect of using fertilizers?

Fish die due to toxins and lack of oxygen in the water.

KEEP Which of the following is an action aimed at dealing with urban sprawl?

Granting tax breaks for new businesses that agree to build on vacant lots within city limits

Megan uses an old newspaper to wrap her mother's birthday gift. Which waste disposal method is Megan practicing?

Reuse

KEEP Which of the following statements about groundwater is NOT true?

Roads built by humans enable water to soak into the earth.

Which of the following techniques reduces pesticide use?

Rotating crops to disrupt insect cycles.

KEEP Negative impacts of water pollution include __________.

killing organisms or otherwise disrupting their life cycles

Which of the following correctly lists the three crops that supply the majority of human caloric needs worldwide?

Wheat, rice and corn

Food availability and nutrition can be directly impacted by __________ factors such as drought and flooding.

environmental

KEEP State and local governments address urban sprawl through regulations, such as _________, which create parks and community gardens.

establishing green zones

KEEP Which of the following is a cause of urban sprawl?

he federal government subsidized gasoline and road construction.

In the United States, the standard of living requires about five hectares per person. If every person on Earth required five hectares to live, we would need __________ to sustain the current population.

three Earths

Dry-cleaning chemicals leach into the water supply and are ingested, causing respiratory illness and death. The hazardous waste characteristic of the chemicals in this example is __________.

toxicity

KEEP Which of the following statements about groundwater is NOT true?

​Humans access groundwater by creating aquifers.

Ever since a dam was built to divert a river and create a reservoir on the edges of the city, there were two kinds of people in the city: those in favor of the dam and those opposed to it. Sam Rockwell was one of those opposed, and he was making his regular appearance at the city council meeting with this to say about it. Choose the statement Sam would most likely make about the impacts of the dam.

"That river used to flood regularly, and that made my land in the flood plain fertile."

Joan grinds tree branches onto mulch and mixes it with manure to feed her rose bushes. Which waste disposal method is Joan practicing?

Compost

Nancy tosses her grass clippings along with food waste into a corner of her yard. What waste disposal method is she using?

Compost

Janny watched her rose bushes carefully for signs of aphids. When she recognized the signs of their presence on the plant's leaves, she called the local gardening store for advice on how to get rid of them. Choose the best suggestion from those below for Jenny to get rid of aphids without using pesticides.

Introduce ladybugs to the garden to eat the aphids.

KEEP Which of the following is an example of non-point source water pollution?

Pesticide and fertilizer overflow

Which of the following is a negative impact on the environment by pesticide use?

Pesticides can kill species that are native to the area, thereby reducing biodiversity.

Which of the following would be considered a subsistence crop?

Potatoes

Which of the following is NOT true about water supply and demand?

Receding glaciers increase freshwater supply.

Which of the following approaches is most likely associated with organic agricultural practices?

Using natural pesticides and fertilizers

KEEP Which of the following statements is a common characteristic of urban sprawl in the United States?

Water and air pollution are notable environmental consequences of urban sprawl.

Select the example of a point source of water pollution.

A company maintains its vehicles by using a special chemical that washes into a nearby stream.

Select the example that describes a political cause of famine.

A government official hoards the country's natural resources.

KEEP Select the pair of pie charts that accurately displays the percentages of seawater and freshwater on Earth AND the percentage of freshwater that is easily accessible.

All Water on Earth: 97% ocean (seawater) 3% freshwater Freshwater 99% difficult to access 1% easily accesible

KEEP Which of the following is a true statement about efforts to address water pollution in the United States?

Almost 50% of waterways in the U.S. are now considered clean.

Which of the following is true about the breakdown of water on Earth?

Although there is an abundant supply of water on Earth, very little freshwater is readily available.

Which of the following is a consequence of fertilizer runoff into the water supply?

An algal bloom contaminates the local water supply.

KEEP Which of the following is an impact of a growing human population?

Approximately 200,000 people are added to the earth each day.

Which of the following is NOT likely a result of a river that has become polluted from agricultural and industrial runoff?

Biodiversity increases

Select a way that humans impact aquifers.

Contaminate groundwater with fertilizers.

KEEP Which of the following is an example of non-point source water pollution?

Copper, zinc and arsenic runoff from abandoned mines

Russell needs to dispose of the acid from several old batteries leaking in his garage. He pours the acid into a plastic container and then carefully mixes it, a little at a time, with water and baking soda, which neutralizes the acid. Russell uses plastic for storage and mixing because acid has which of the following hazardous waste characteristics?

Corrosive

All of the following are impacts of urban sprawl EXCEPT:

Decreases in ground-level ozone

KEEP Which of the following is NOT an impact of water pollution?

Deforestation

Agriculture has changed natural environments and ecosystems and created agroecosystems. Which of the following is a characteristic of an agroecosystem?

Degrades water quality

__________ factors, such as costs, help explain why many malnourished and undernourished people live in parts of Africa, Asia and Latin America.

Economic

Which of the following activities corresponds with sustainable agricultural practices?

Engaging in no-till farming

Which of the following is the major reason for malnourishment and undernourishment in the world?

Lack of food distribution

Nathan takes an old refrigerator to the local garbage disposal site. Which waste disposal method is Nathan practicing?

Landfill

Which of the following is essential for food production?

Level of nutrients in the soil

Scientists discover that levels of methane gas are rising from decomposition of materials, which pollutes the air. Which type of waste disposal most likely caused this phenomenon?

Scientists discover that levels of methane gas are rising from decomposition of materials, which pollutes the air. Which type of waste disposal most likely caused this phenomenon?

Which of the following is true about efforts to address water pollution in the United States?

Sewage treatment plants have greatly reduced water pollution.

KEEP Which of the following is an example of a consequence of urban sprawl?

Social equity decreases and poverty is concentrated in urban centers.

Select the entity that is currently decreasing on Earth.

Species diversity

KEEP How has the United States acted to address water pollution?

The Clean Water Act of 1972 focused on point source pollution.

KEEP Which of the following statements is true regarding the cleaning up of waterways in the United States?

The Environmental Protection Agency sets water pollution limits on different industries.

KEEP Which of the following statements impacts water supply?

The amount of contaminated water is growing.

KEEP Which of the following is an impact from the human population growing?

The overall temperature of the earth's surface is warming due to air pollution emissions.

KEEP Which of the following is an issue with the sources of water and how we use it?

The water cycle moves water through the environment, but the water supply is finite.

KEEP Which of the following is a reason why dams are built?

To generate power

KEEP Which of the following is an impact of water pollution?

Unclean water poses risks to human health.

Which of the following is describes a sustainable agricultural practice?

Uses resources in a manner that doesn't degrade them

Which of the following components is paired with regenerative agricultural practices?

Using natural ecological services to replenish natural resources

Developing nations' standard of living requires __________________, which is a little less than one football field.

0.5 hectares/person

Which of the following statements about meat as a food source for humans is true?

76% of all meat is consumed in developed countries.

In the United States, which of the following is the percentage of grain grown that is used for animal feed?

90%

A neighborhood clears an abandoned vacant lot, treats the polluted soil, and creates a community garden. What approach to addressing urban sprawl is this an example of?

Brownfield

What characteristic describes developing countries?

Have the fastest rate of population growth.

Select the true statement about water usage.

Households use the least water.

KEEP Which of the following describes the impacts of human population growth?

Human population growth has been due largely to better medical care and technology.

Which of the following statements about meat as a food source for humans is true?

It takes 16 pounds of grain to produce one pound of meat.

KEEP Which of the following statements is true about water supply and demand?

Many major aquifers have reduced levels of available water.

KEEP Which of the following options is an effective measure to address urban sprawl?

Mass transit options are being expanded.

KEEP Which of the following statements about groundwater is NOT true?

Most humans get their drinking water from rivers, lakes and streams.

Identify a major fertilizer that can result in the disruption of ecosystems and have negative impacts on human health.

Nitrogen

KEEP Which of the following is an example of point source water pollution?

Ocean and lake dumping of waste

KEEP Choose the true statement about water on Earth.

Oceans cover about 70% of the Earth's surface.

Which of the following statements about meat as a food source for humans is FALSE?

Of the grain grown in the United States, 10% is used to feed animals.

KEEP Which of the following statements about water on Earth is true?

Only about 1% of freshwater is easily available for human use.

Which of the following statements is a reason for using pesticides on croplands?

Pesticides help kill pests that carry disease

Agriculture has changed natural environments and ecosystems and created agroecosystems. Which of the following is a characteristic of a natural ecosystem?

Promotes biodiversity

Agriculture has changed natural environments and ecosystems and created agroecosystems. Which of the following is a characteristic of an agroecosystem?

Promotes monoculture

KEEP Which of the following is a benefit of dams?

Reliable water supply

Which of the following factors do NOT contribute to famine, or insufficient food supply in a specific area?

Religious practices

Which of the following statements about the ecological footprints of those living in the United States and in developing countries is true?

The ecological footprint per person in the United States is approximately 10 times greater than that of a person in a developing nation.

KEEP Which of the following is an argument for the removal of dams?

We must restore water flow to improve animal habitat and promote biodiversity.

Which three subsistence crops supply over 50% of human caloric needs worldwide?

Wheat, corn and rice

Sulfuric acid slowly erodes the metal container holding it and leaks out. The hazardous waste characteristic of the acid in this example is __________.

corrosivity

All of the following are negative environmental issues associated with agroecosystems EXCEPT ___________.

decreased runoff from fertilizers

Famine can be due to demand exceeding supply but is most often it is due to ____________.

distribution issues

The standard of living in the United States requires five hectares per person, which is equivalent to a little more than __________.

nine football fields

War and costs that interfere and prevent the distribution of food are examples of __________ factors.

political

Chlorine bleach and ammonia spill and mix together in the aisle of a grocery store, producing a poison gas. The hazardous waste characteristic of the mix in this example is __________.

reactivity