Acid rain with a pH of 4.6 is more acidic than normal rainfall by a factor of
Which of the following regulates the flow of nitrogen into and out of its largest reservoir?
Which of the following is the smallest reservoir of the global hydrologic cycle?
Nitrogen fixation will take place in fields that are planted with
Why is more than 99% of the water on earth is not readily available for use as freshwater?
it is located too deep underground It is too frozen or too salty
The goal of the second stage of waste water treatment plant is to
remove the large solid material
what organism is first to be adversely affected by thermal pollution in a stream?
insect larvae in the water
The pH value is the measure of the
concentration of hydrogen ions in the water
Whar law created the Superfund program?
Comprehensive Environmental Response, Compensation, and Liability Act
High infant mortality rates are likely to occur in countries that have
high levels of infectious disease
Composting is a process that produces
useful plastic products
What is NOT a disadvantage of old-style landfills?
They generate gases that can be recovered and used as fuels
According to the law of conservation of energy:
energy cannot be created or destroyed, only converted into different forms
lists the energy source from greatest to smallest percentage of total annual energy usage in the United States?
fossil fuels, nuclear energy, geothermal energy
Canada has large deposits- about 3/4 of the world's supply- of an unconventional oil known as
bitumen, or tar sands
Feedlots are damaging to the environment because of
which pollutant does not have a natural source
Do aerosoles release methane?
Do dead plants release methane?
This element is the basic building block of all organic molecules.
Give an example of a density-independent population control?
density independent factor
limiting factor that affects all populations in similar ways, regardless of population size
The greatest amount of organic matter in the soil is found in which soil horizon?
The A horizon
Which of the following types of organisms are usually the first to suffer when an ecosystem is disrupted?
Does earth's core store carbon?
A negative effect of human interference in the nitrogen cycle is
the production of rain containing nitric acid
what human activities is most closely associated with depletion of the stratospheric ozone layer?
Disposal of refrigerators and air conditioners
An integrated pest-management approach to pest control emphasizes
Reduction of crop damage to an economically tolerable level
Of the following, which is true of noise pollution?:
Noise pollution is an insignificant occupational hazard
Noise at 100 decibels has twice the energy of noise at 50 decibels
Hearing damage occurs most quickly when the intensity level of the sound is low In urban areas, few individuals are exposed to noise pollution
Sudden or persistent noise by lead to permanent hearing loss
Sudden or persistent noise by lead to permanent hearing loss
Overuse of groundwater in coastal areas would most likely result in
what country has the largest proven reserves of strategic metals such as manganese, chromium and platinum?
What two main factors would best indicate the quality of life of a country's population?
The life expectancy and the infant mortality rate
First law of thermodynamics
In a closed system of constant mass, the energy involved in any physical or chemical change is neither created nor destroyed but merely changed from one form to another
what did Rachel Carlson do?
Increasing public awareness of the risks of using pesticides
In a typical forest ecosystem, dead trees and fallen trees are most important because of their role in
providing habitat for wildlife
Possible effects of a warmer atmosphere include which of the following? I. Expanded ranges of tropical diseases II. More intense hurricanes and typhoons III. Increased crop damage from pests and diseases *
I only II only III only II and III I, II, and III
I, II and III
a sustainable society would emphasize
using energy efficiently and reusing and recycling matter
What is a greenhouse gas that is produced by domestic livestock
what is most typically associated with the transition from a rural to urbanized society?
reduced birth rates
point source pollution
any single identifiable source of pollution from which pollutants are discharged, such as a pipe, ditch, ship or factory smokestack
e.g Smokestack emissions from a large smelting company
The 3 main anthropogenic sources of gaseous air pollutants in the United States are
industry, transportation and energy production
Most municiple solid waste in the United States is disposed of in
Which of the following would likely reduce the threats posed by exotic species to native species? I. Increasing inspections of goods coming into the country II. Mandating that bilgewater from vessels be emptied in ports instead of in the open ocean III. Enforcing legislation that restricts imported materials such as untreated wooden packing crates *
I only II only III only I and III only I, II and III
I and III only
a measure of the amount of suspended material in water
what are three major sources of nutrients and calories for the global human population?
Corn (maize), wheat and rice
what can be used to assess the biological diversity of an area
Genetic variation within each species and number of species present
Ground level ozone in most major United States cities results primarily from
the economic approach of including external costs in the price of goods and services
include harmful health and environmental costs of goods and services
cap and trade
A system for controlling carbon emissions with an upper limit "cap".
debt for nature
Forgiveness of international debt in exchange for nature protection in developing countries
a grant paid by a government to an enterprise that benefits the public
what could encourage recycling
Decreasing taxes on recycle material
Which of the following is a true statement about passive solar heating?
It is effective only during the summer months
It is based in part on the principle of the greenhouse effect
It is not used to heat commercial buildings
It is not efficient because it cannot produce high-quality energy
It produces more pollution that heating with an electric heat pump
It is based in part on the principle of the greenhouse effect
the four most populated countries in the world
China US India Indonesia
the impact of a person or community on the environment expressed as the amount of land required to sustain their use of natural resources
rule of 70
70 (divided by) growth rate = doubling time
more economically developed countries have
high per capita GDP high degree of industrialization high per capita fossil fuel use high ecological footprint high greenhouse emissions high risk of heart disease
low infant mortality rate low risk of infectious disease
less economically developed countries have
low per capita GDP low degree of industrialization low per capita fossil fuel use low greenhouse emissions low risk of heart disease
high ecological footprint high infant mortality rate high risk of infectious disease
wind water biomass
coal oil metals
total fertility rate
the average number of children a woman will have throughout her childbearing years
replacement level fertility
the number of children a couple must have to replace themselves (2.1 developed, 2.7 developing)
infant mortality rate
the number of deaths in the first year of life for every 1,000 live births
crude birth rate
The total number of live births in a year for every 1,000 people alive in the society.
crude death rate
The number of deaths per year per 1,000 people.
Tragedy of the Commons
The tendency of a shared limited resources to become depleted
positive feedback loop
a feedback loop in which change in a system is amplified
negative feedback loop
when a system responds to a change by returning to its original state
electromagnetic radiation from lowest to highest energy
Radio, Micro, Infrared, Visible, UV, X-Ray, Gamma
Visible light from shortest to longest wavelength
violet, blue, green yellow, orange, red
e.g of organic compounds
3 consequences of global warming
flooding- sea levels rise
degrading food + water supplies - falling water tables, drought, wildfires etc.
spread of diseases outside normal ranges e.g malaria
how to decrease global warming
improve energy efficiency- decrease need for fossil fuel
walk or bike when possible
eat less meat- avoid methane
Humans began agriculture
12,500 years ago
CH4 CO2 NO Water Vapor
Which lake has the most freshwater
particle size in order biggest to smallest
sand silt clay
Which of the following is LEAST likely to be an effect of global warming?
(a) Loss of fertile delta regions for agriculture
(b) Change in global patterns of precipitation
(c) Extinction of some species that have narrow temperature requirements
(d) Decreased rate of photosynthesis in vegetation
(e) Increased frequency of hurricanes
Reasons that the population size of an exotic species often grows rapidly when the species is introduced in a new environment include which of the following? I The exotic species is resistant to pesticides II There is a large, underutilized food source in the new environment III The exotic species has few natural predators in the new environment
(a) I only
(b) II only
(c) I and III only
(d) II and III only
(e) I, II, and III
the removal of pollution or contaminants from the environment
A 1973 treaty formed to control the international trade of threatened plants and animals
16 Which of the following greenhouse gases has the greatest heat-trapping ability per molecule?
(a) Carbon dioxide
(b) Carbon monoxide
(e) Nitrous oxide
which layer has the good ozone and which layer has the bad ozone?
troposphere - bad stratosphere - good
3 biotic components of an ecosystem
plants animals bacteria
3 abiotic components of an ecosystem
soil water rock
why is phosphorus important?
important nutrient for ATP and bones
formula for photosynthesis
6H₂O + 6CO₂ + Light Energy → C₆H₁₂O₆+ 6O₂
formula for cellular respiration
C6H12O6 + 6 O2 -> 6CO2 + 6H20 + ENERGY (ATP)
species that have broad niches, such as flies, cockroaches, raccoons, humans.
narrow niches; more vulnerable (e.g. panda bear)
plants and animals that have migrated to places where they are not native
Species that is found in only one area. Such species are especially vulnerable to extinction.
a species that has an unusually large effect on its ecosystem
species that serve as early warnings that an ecosystem is being damaged
an increase in fertility in a body of water, the result of anthropogenic inputs of nutrients
when CO2 dissolves in seawater, it reacts with water to form carbonic acid, which lowers ocean pH
can cause coral bleaching, death of marine life, climate change etc.
(1987) phase-out of ozone depleting substances
US endangered species act
(1973) designed to identify and protect endangered species in the US and abroad
biological oxygen demand
the amount of oxygen a quantity of water uses over a period of time at a specific temperature
[genetically modified organism] an organism that has acquired one or more genes by artificial genes.
the first National Park
Clean Air Act
(CAA, 1970) set emission standards for cars and limits for release of air pollutants
Clean Water Act
1973 law that restricted the pollution of water by industry and agriculture
Clean Drinking Water Act
Particles are removed by a series of filter bags that physically filter out the particles
can be used for electric generation
removes solid particulate matter using static charge in smokestacks (ie. coal burning power plants)
three sources of methane that are amplified but human activities
landfills cattle farms natural gas - petroleum emissions
a device that reduces carbon monoxide emissions from vehicles.
possess relatively stable populations and tend to produce relatively low numbers of offspring
r-selected species generalist niche
many offspring; few of which survive
generalists are adaptable species, in less danger of extinction ex. flies, rats, cockroaches
making a river deeper or wider by digging up sand and mud from the bottom
used to harvest shrimp, scallops and crabs from the sea floor
Fishing by dragging extremely long lines with baited hooks spaced along their lengths
which is produced more globally corn rice or wheat
1 Corn 2 Wheat 3 Rice
buildup of pollutants at higher levels of the food chain
an insecticide that is also toxic to animals and humans because it alters metabolism
wastewater from baths, showers, bathrooms, and washing machines
A measure of how clear water is.
petroleum that has not been processed
air pollutants that are emitted during the burning of coal
CO2 SO2, NOx Mercury
formed naturally through the radioactive decay of uranium
Acid rain is caused by a chemical reaction that begins when compounds like sulfur dioxide and nitrogen oxides are released into the air.
a mining technique that uses a large pit or hole in the ground, visible from the surface of Earth
can cause habitat destruction, acid mine drainage, runoff
Extraction of a metal ore or fuel resource such as coal from a deep underground deposit.
can cause cave ins, explosions, fires, black lung
layers of surface soil and rock are removed from large areas to expose the resource
leaves a series or spoil banks, promotes erosion acid mine drainage
a mining technique in which the entire top of a mountain is removed with explosives
waste rock can destroy forest, buries streams, toxic mining materials like arsenic and mercury can overflow, disrupts groundwatter
The process of obtaining materials by pumping them through holes drilled into the earth.
Three Mile Island
The location of a nuclear power plant in Pennsylvania where there was a radiation leak in 1979
pH of blood
pH of a lemon
pH of rain
pH of calcium
pH of ammonia
pH of acid rain
the method of growing plants in a solution of nutrients instead of in soil
An ecosystem where all water runoff drains into a single body of water
an area of land that is periodically underwater or whose soil contains a great deal of moisture