EVR1001 Ch.12

Which of the following statements reflects how you might use the data from the graphs in the previous parts to make your case? Select all that apply.

Construction of an artificial wetland in California maintained the same diversity and abundance of birds at that location as existed prior to construction.

The source of the Amazon River is the Peruvian Andes in this part of the mountain range.

Cordillera Occidental

Which of the following environmental concerns do both essay discuss?Dams block passage for migratory fish.

Dams block passage for migratory fish.

The essay in support of dam removal avoids one key environmental benefit touted by dam advocates. If the authors were participating in a debate, how might dam advocates state this benefit?

Dams use a renewable "fuel" (water) to generate clean electricity

Thomas Flint and Christine Stallard cite multiple benefits of dams. Which of the following statements represents their primary argument for the importance of dams?

Global water use has increased at twice the rate of population growth, and dams can provide water.

__________ is a lowland area that forms a highly saline bay on the Caspian Sea, suitable for flamingoes. It dried out soon after it was dammed in order to block the flow of saline water bay into the Sea

Kara-Bogaz-Gol

The filling of Kaptchagayskoye Reservoir on the River Ili has negatively affected the water level, salinity levels, and ecology of this body of water.

Lake Balkhash

How much land is Louisiana losing every year as a result of coastal erosion?

Louisiana is losing 75 km2 of wetlands every year.

Which of the following statements is true?

Most of Earth's fresh water is frozen.

Part A Part complete What is the spatial relationship between the distributions of water and people?

Populations and water resources too often have an inverse relationship (lots of people where there is little water).

You are part of a panel that reviews dam permits for renewal. Your panel hears testimony from both pro-dam and pro-dam removal advocates. Which of the following scenarios is least likely to be controversial?

Removal of a mill dam for a now defunct mill operation

Located in the southern part of the Great Rift Valley, Lake _____ is the world's longest freshwater lake and has been a showcase of cichlid evolution. Many of the endemic fish have made their way into the aquarium trade.

Tanganyika

All of the following are examples of point sources of pollution except ________.

a large farm

What is the direct cause of death for aquatic animals during eutrophication?

a loss of dissolved oxygen in the water

Part A Part complete Which of the following best describes a floodplain?

a region of land that is periodically flooded when a river overflows

A septic system is ________.

a rural method of processing wastewater

After 55 years, how does the capacity of a restored wetland to absorb nutrients compare to that of a natural wetland?

about 40% of natural wetland capacity

After 20 years, how much plant biomass does a restored wetland contain?

about 80% of the biomass of a natural wetland

The rapid melting of Greenland's ice cap could disrupt the NADW formation by ________.

adding huge amounts

=What industry contributes to wetland loss in Louisiana?

agriculture

Which of the following crops or animals are supported by the water runoff from the highlands of Kyrgyzstan and neighboring Tajikistan?

all

Sara Nicholas presents the case for dam removal by offering a variety of reasons. Which of the following reasons is her primary argument for removing dams?

all dams

What is the most cost-effective solution for groundwater depletion and land-level subsidence?

allowing no more

It is the second longest river in the world and responsible for about 20 percent of the freshwater that flows into the world's oceans.

amazon

What is a marine protected area?

any portion of the ocean that is protected from some human activities but may be open to others, such as the laying of cables and some

Which of the following is a promising way to reduce global water consumption?

avoidign waste management

Recent research that analyzed the content of commercial bottled water indicates that ________.

bottled water is no safer

The Negro River is the largest blackwater river in the world. "Blackwater" refers to the fact that it is a deep river that flows slowly through forested swamps and wetlands, with dark-colored waters as a result of tannins that are leached out of decaying vegetation. What country does this blackwater river flow through?

brazil

Upwelling ________.

brings benthis

Which is the correct term to describe fish and other ocean organisms that are caught accidentally along with the targeted fish?

bycatch

Is the following statement supported or not supported by the data shown in the graph? The restoration of a wetland takes about 100 years.

cannot be determined

The zebra mussel, a disastrous invader in the Great Lakes of North America, is native to this, the largest of the enclosed water bodies of the world.

caspian

This river's drainage basin includes areas both north and south of the equator. Its flow is stable because there is always a rainy season somewhere along the river.

congo

The area that underlies the shallow water bordering continents is called the ________.

continental shelf

What caused the Aral Sea, the fourth largest lake on Earth, to lose four-fifths of its volume in 40 years?

cotton farmers

The Mississippi River's flow has been greatly reduced over the last 200 years, preventing much of the sediment carried by the river from reaching the delta in Louisiana. What has caused this?

dams

Oceans have absorbed approximately one-third of the excess carbon dioxide that humans have added to Earth's atmosphere so far. This has slowed the progression of global climate change, but it has led to ________.

decrease in ph

What technology is used to extract freshwater from ocean water?

desalinization

If the captain of a fishing fleet wanted to catch fish over a vast expanse of ocean, which of the following would be an effective method to do so

driffnets

The exceptionally strong warming of the eastern Pacific is referred to as ________.

el nino

Which of the following is a systematic shift in atmospheric pressure, sea surface temperature, and ocean circulation patterns in the tropical Pacific Ocean that alters weather patterns on a worldwide scale?

enso

What type of coastal feature experiences fluctuations in salinity with daily and seasonal variations?

estuaries

As a result of humans' increased use of the water in the Colorado River, __________.

fisheries in the upper Gulf of California have been hurt

We build dams to ________.

generate electricity, prevent flooding, and provide irrigation and drinking water

Which of the following is a nonconsumptive use of water as a resource?

hydroelectriv

The fish in the lake at the local park are dying, and a professor from the local college comes to investigate. First, she measures the levels of dissolved oxygen in order to check for ________.

hypoxia

Most of Earth's liquid fresh water is found ________.

in the oceans

One reasonable way to prevent sinkholes might be to ________.

increase groundwater recharge by constructing artificial wetlands that use treated municipal wastewater

According to the Federal Emergency Management Agency, the number of human-induced sinkholes has doubled since 1930. Insurance claims increased 1200% from 1987 to 1991, costing nearly $100 million. A major reason for this is ________.

increased water consumption

Ocean water is 96.5% water by mass. Most of the remainder consists of __________.

ions

Humans use more fresh water for ________ than for any other purpose.

irrigating crops

Most water taken out of the natural world is used for __________.

irrigation

Which of the following lakes lies at the highest elevation?

lake tana

The region of a lake where plants are able to attach to the bottom and still reach above the surface is known as the __________.

littoral zone

The Macina is a large area of lakes and floodplains whose ecosystem depends on how much flooding it receives. The delta consists of the middle course of this river in the Sahel. In the river, you can still find sea cows.

niger

The glaciers in the highlands of Kyrgyzstan and neighboring Tajikistan are vital to the water supply of Central Asia, but they have been slowly diminishing in size. As they melt, they are a major source of runoff for the __________.

not volga

Sinkholes can result from ________.

overconsumption

Currently, the greatest ecological crisis facing marine food webs is ________.

overharvesting

The La Plata River Basin includes the _____ river.

paranna

ich of the following types of pollution is most responsible for large numbers of deaths worldwide because of unsafe drinking water?

pathogenic

What does the y-axis show?

percent of recovery compared to natural wetlands

What does the red graph line represent?

plant biomass

Pathogens and waterborne diseases enter drinking water supplies from ________.

poorly treated wastewater and animal wastes from feed lots

Natural wetlands provide many ecosystem services. When a wetland is restored, which of the following ecosystem services returns most rapidly?

providing food for fish and wildlife

Based on the bar graph, during which season did bird abundances decline post-construction of the artificial wetland?

summer

drag to bin

supply-side solutions:desalinating sea waterdamming a rivera nation invadingdemand-side solutions:raising water pricesproviding tax breaksrequiring low-flowreplacing inefficient

Zooxanthellae are ________.

symbiotic algae

A watershed is ________.

the area of land that drains into a river or lake

In the past 50 years, the global hydrological environment has experienced great change due to __________.

the construction of more than 40,000 new dams

Which term describes a regular periodic change to the ocean's height due to the gravitational influence of the moon and the sun?

tides

The Amazon River Dolphin inhabits both the Amazon and Orinoco Rivers. What is the climate in the region of the Orinoco?

tropical savanna

The introduction of the Nile perch has dramatically altered the freshwater ecosystem of Africa's largest lake. This lake is located in a ________

tropical savanna

____________ is the rising of deep, cold, dense water toward the surface.

up-welling

"Biosolids" produced at a wastewater treatment plant are often ________

used as a crop fertilizer

Which of the following wetland environments only occurs for a short period of time each year?

vernal pools

Which of the following will contribute to water conservation?

watering lawns at night

What is the name of an area of land that is drained by a river and all of its tributaries?

watershed

Many present-day fisheries managers ________.

wish to set aside areas of ocean where systems can function without human interference