Migratory behavior of salmon in the Pacific northwest was assisted by
greater cutting of trees along the banks to promote warmer temperatures.
cutting of new channels parallel to the rivers in which they can migrate.
all of these answers are correct.
The water table is
anywhere water is visible on the surface.
where streams and lakes intersect.
the uppermost level at which water fully saturates rock or soil.
synonymous with groundwater.
where water under pressure rises.
Dams are used for which of the following? I. Create reservoirs for drinking water. II. Power turbines that generate electricity. III. Better conditions for salmon migration.
I and II.
I and III.
I, II, and III.
You are selecting a new dishwasher. You do about 150 loads per year. The less efficient model uses 9 gallons per load. The more efficient model uses 6 gallons per load. How many gallons of water will be saved over the course of one year?
Name: _________________________ Period: _______
Gray water may come from
Baths, showers, sinks, and washing machines.
All of these are correct.
A cone of depression may develop
where artesian wells are common.
if groundwater is deep.
where groundwater is abundant.
in areas adjacent to a deep well from which a great deal of water is rapidly pumped.
only in unconfined aquifers.
Saltwater intrusion into freshwater aquifers may be a problem in
the midwestern United States.
areas with many freshwater lakes.
When talking about available fresh water this would exclude
I and II
I and III
Standard VI. C
Which of the following is a point source of water pollution?
offshore oil wells
In a septic tank system, which of the following is not true?
wastewater is pumped into a settling tank
grease and oil rise to the top in the tank
solid are decomposed by bacteria
bacteria treated waste is discharged in an absorption field
after leaving the absorption field, wastewater is cleaned and can be used again for human consumption.
The difference between a point source and a nonpoint source of water pollution is
a nonpoint source is easily identifiable
nonpoint sources are less harmful to the environment
Dead zones, such as the one in the Gulf of Mexico that exists off the coast of Louisiana, are characterized by all of the following EXCEPT
a reduced number of shellfish
fish die-off events
low oxygen concentrations in the water
low nitrogen concentrations
a reduced number of marine plant species
What is the first step of treating wastewater at a municipal sewage treatment plant?
Use of bacteria to break down organic matter
Solid waste material settles out
Disinfection using chlorine or ozone
Water is removed from sludge
Water undergoes aeration to reduce offensive odors
It is estimated that initially the Deepwater Horizon oil platform accident released 53,000 barrels per day. At one barrel equivalent to 42 gallons that would result in roughly ____ gallons per day.
Under which of the following circumstances is a sewage treatment plant legally permitted to bypass normal treatment protocol and discharge large amounts of sewage directly into a lake or
When the receiving surface water is designated for swimming only
When the population of the surrounding community surpasses the plant’s capacity
When combined volumes of stormwater and wastewater exceed the capacity of an older plant
When a permit to modernize the plant is denied by the Environmental Protection Agency
When an extended period of drought restricts water flow in a lake or river
All of the following are the result of the Exxon Valdez oil tanker running aground off the coast of Alaska in 1989 except
millions of gallons of crude oil spread over the ocean and shoreline.
thousands of animals were killed; some species have recovered, others have not.
the oil that contaminated the shoreline is now completely broken down.
Exxon paid $500 million in damages and changed the name of the ship.
all oil tankers in North America must have a double-hull design by 2015 to resist leaking.
The passage of water-pollution legislation is most likely to occur when
A developing country is still in the process of industrialization and rapid population growth.
A developed country has experienced industrialization and can afford the control measures demanded by its citizens.
A developing country has not yet industrialized and water quality is still good.
Contaminating industries relocate in a developing country and begin to abuse the less- restrictive environmental laws.
Nonpoint sources of water pollution outnumber point sources.
Results when waterways are inundated by excess phosphates and nitrates in runoff of fertilized cropland, urban lawns, animal feedlots, and the discharge of treated and untreated municipal sewage.
Point source pollution
Non point source pollution
______ is the largest source of water pollution
The name of the oil tanker that crashed off the coast of Alaska in 1989 is
Deep water horizon
All of the following are methods to clean up oil except
Hair and feathers
More than 3.4 million people die each year from water, sanitation, and hygiene-related causes. Nearly all deaths, 99 percent, occur in the developing world. Which of the following is not a possible reason for these deaths?
Lack of education
Construction of toilets
Fecal Coliform Bacteria contamination
To prevent anaerobic decomposition in the wastewater treatment center, oxygen is pumped into tanks. These tanks are called
Legal sewage dumping allows the water treatment companies to overflow into a large body of water when there is too much rain. The Water Quality Act offers the following solution
Construction of more holding tanks
Separation of storm and sewer lines
Regulate point source pollution
Set maximum contaminant levels
Regulate nonpoint source pollution
Standard VI. D
Which of the following items would most likely end up in the waste stream the fastest?
The major component of MSW in the United States is
An environmental cost of sending computers to landfills is
There is inadequate landfill space in the United States for computers
It is less expensive to send computers to the landfill than to recycle them
Children separate the components of the disposed of computers
The disposed computers contain toxic metals that can end up in the environment
Landfill standards keep the toxic compounds in the computers from leaching into the water table
A company that produces laundry detergent switches from distributing its product in plastic bottles to instead using flexible pouches that require 84% less packaging. This is an example of
cost analysis reduction
Which of the following is least likely to be a danger associated with leachate from a sanitary landfill?
The leachate can leak into nearby soils
The leachate can be classified as toxic waste and have to be treated accordingly
The environmental benefits of composting include all of following EXCEPT:
Reduced volume of material ending up in a landfill
Generation of rich organic fertilizer
Reduction in work force of waste management company
Reduced amount of methane generated in landfills
Reduced amount of energy needed to transport material to a landfill
Which component of a landfill is extracted and either used as fuel or burned off?
Which component of a landfill is extracted and transported to a wastewater treatment facility?
All of the following are desired outcomes of MSW incineration except
Prolonging life of landfills.
Increasing air pollution.
From an environmental waste perspective which of the following is the most desirable?
Of the following, which contributes most to the weight of MSW?
Ores such as gold and silver
Cradle to cradle design makes products that
Will not decompose
Will not result in anything going to a landfill.
Are easer to reuse
Use only organic material
A family can use for generations
Standard VI. A
If a municipality wanted to take measures to decrease its air pollution, the largest impact would come from
Switching its city fleets of vehicles to natural gas from gasoline
A voluntary recycling program
Limiting the new businesses start-ups in the area
Constructing new landfills
Requiring specific materials be used in the manufacture of new homes
The smog that frequently exists in major metropolitan areas such as Los Angeles, CA is known as brown smog and consists primarily of what component?
Carbon particulate matter
A thermal inversion, which can lead to serious pollution events, occurs when
Warm air that normally rises, does so taking the pollutants with it
Warm air that normally rises stays close to the surface holding pollutants close to the surface
Cool air that normally rises, does so taking the pollutants with it
Cool air stays close to the surface but pollutants rise into the atmosphere
Cool air stays close to the surface and is blanketed by a layer of warm air that traps pollutants
The Clean Skies Initiative proposed a SO2 emissions reduction from 11 million tons in 2002 to 4.5 million tons in 2010. What was the proposed annual reduction of emissions, assuming that emissions are reduced at a constant rate?
6.5 million tons per year
4.5 million tons per year
1.2 million tons per year
0.8 million tons per year
0.3 million tons per year
All of the following are true about acid rain except
Originates from sulfur oxides
Is a byproduct from burning coal
Decreased after the industrial revolution
Decreases trees and fish populations
Air purifiers use which of the following methods
I and II
I, II, and III
All of the following are primary air pollutants except:
The following is created by the presence of sunlight and car exhaust. City’s that have a lot of cars and warm temperatures have an abundance of
Standard VI. G.
Often, when used to make decisions about the environment, this method requires placing a monetary value on elements that are difficult, or impossible, to value like human life, or the extinction of a species. This is an example of
Cost benefit analysis
The production of paper pollutes the environment, and everyone in the society bears the environmental and social costs. This is an example of
Cost benefit analysis
When weighing costs and benefits it will increase a farmer’s yield to apply pesticides. However society will have to deal with the external cost of all of the following except
Ecological effects of pesticide runoff into waterways
Health effects to the workers who spray the fields