ENVS 1126 Edward Laws Final Exam 1
Which one of the following statements is part of the basis of the scientific method - ANS-Every
result has a cause
When CO2 dissolves in the ocean, it combines with water (H2O) to form carbonic acid, H2CO3.
As a result of the increase in atmospheric CO2, the ocean is becoming acidic. Since the start of
the industrial revolution, the pH of seawater has decreased from__________? - ANS-8.2 to 8.1
Globally the fastest-growing source of electricity is - ANS-Wind energy
Which one of the following has not experienced serious environmental problems as a result of
deforestation - ANS-Dominican Republic
The collapse of the reindeer population on St. Matthew Island in 1963 (see below)
reflects_____? - ANS-All of the above
Of the CO2 that has been emitted to the atmosphere as a result of fossil fuel burning and
deforestation in the last 250 years, about _________ has been taken up by the ocean -
ANS-25%
The concentration of CO2 in the atmosphere is currently about - ANS-400 ppm
Which one of the following countries has the highest maternity mortality? - ANS-United States
Removing the handle on the Broad Street Pump to determine whether the water was the cause
of a cholera outbreak in London in 1854 is an example of - ANS-Hypothesis testing
By the end of this century, the Intergovernmental Panel on Climate Change (IPCC) is projecting
that temperatures will rise much more at high latitudes in the northern hemisphere than
anywhere else on Earth. This projection is based on the fact that - ANS-The ice on the Arctic
Ocean is melting
The countries that signed the Montreal Protocol agreed to scale back - ANS-Production of
chlorofluorocarbons (CFCs)
Since the phaseout of leaded gasoline in the United States, the average blood levels of children
in the U.S. have declined by about - ANS-90%
Recovery of municipal solid waste by recycling has increased from 7% in 1970 to about
_______ at the present time. - ANS-35%
, The Economy of _____ and _____ countries is centrally planned at the present time? -
ANS-Cuba, North Korea
Approximately ______ states have bottle laws to encourage and facilitate recycling of bottles. -
ANS-10
Comparison of the gross domestic product (GDP) with the genuine progress indicator (GPI) in
the U.S. has shown that since 1950 the GPI has - ANS-Remained fairly constant
A marsh is an example of _______________. - ANS-An ecotone
A biome is a large area of the earth's surface with similar _____ and ______. - ANS-Plants . . .
climate
Reducing the input of inorganic nitrogen to University Lake is expected to result in a decrease in
the abundance of algae in the lake. If this happens, it would be an example of - ANS-The law of
limiting factors
Bats and swallows both feed on flying insects, but they do not compete because bats feed at
night and swallows feed during the day. Although bats and swallows live in the same habitat,
they occupy different________. - ANS-niches
Mangroves are much more abundant near Port Fourchon today than they were 30 years ago
because - ANS-There has not been a hard freeze since 1989
The two general categories of energy are potential energy and ________. - ANS-Kinetic energy
The six most abundant elements in organic matter are? - ANS-nitrogen, carbon, oxygen,
hydrogen, phosphorus, and sulfur.
A bag of fertilizer is labeled 12-18-20. What is the percentage of organic matter in the fertilizer?
- ANS-Cannot tell
Plants that contain nitrogen-fixing bacteria in their root nodules are called__________. -
ANS-legumes
Denitrification is a microbial process that occurs in soils and sediments depleted of ____. -
ANS-oxygen
In a population whose dynamics are characterized by logistic growth - ANS-The maximum rate
of population growth occurs halfway to carrying capacity
A population of organisms is liable to become extinct if the number of individuals - ANS-Falls
below the critical number
Which one of the following statements is part of the basis of the scientific method - ANS-Every
result has a cause
When CO2 dissolves in the ocean, it combines with water (H2O) to form carbonic acid, H2CO3.
As a result of the increase in atmospheric CO2, the ocean is becoming acidic. Since the start of
the industrial revolution, the pH of seawater has decreased from__________? - ANS-8.2 to 8.1
Globally the fastest-growing source of electricity is - ANS-Wind energy
Which one of the following has not experienced serious environmental problems as a result of
deforestation - ANS-Dominican Republic
The collapse of the reindeer population on St. Matthew Island in 1963 (see below)
reflects_____? - ANS-All of the above
Of the CO2 that has been emitted to the atmosphere as a result of fossil fuel burning and
deforestation in the last 250 years, about _________ has been taken up by the ocean -
ANS-25%
The concentration of CO2 in the atmosphere is currently about - ANS-400 ppm
Which one of the following countries has the highest maternity mortality? - ANS-United States
Removing the handle on the Broad Street Pump to determine whether the water was the cause
of a cholera outbreak in London in 1854 is an example of - ANS-Hypothesis testing
By the end of this century, the Intergovernmental Panel on Climate Change (IPCC) is projecting
that temperatures will rise much more at high latitudes in the northern hemisphere than
anywhere else on Earth. This projection is based on the fact that - ANS-The ice on the Arctic
Ocean is melting
The countries that signed the Montreal Protocol agreed to scale back - ANS-Production of
chlorofluorocarbons (CFCs)
Since the phaseout of leaded gasoline in the United States, the average blood levels of children
in the U.S. have declined by about - ANS-90%
Recovery of municipal solid waste by recycling has increased from 7% in 1970 to about
_______ at the present time. - ANS-35%
, The Economy of _____ and _____ countries is centrally planned at the present time? -
ANS-Cuba, North Korea
Approximately ______ states have bottle laws to encourage and facilitate recycling of bottles. -
ANS-10
Comparison of the gross domestic product (GDP) with the genuine progress indicator (GPI) in
the U.S. has shown that since 1950 the GPI has - ANS-Remained fairly constant
A marsh is an example of _______________. - ANS-An ecotone
A biome is a large area of the earth's surface with similar _____ and ______. - ANS-Plants . . .
climate
Reducing the input of inorganic nitrogen to University Lake is expected to result in a decrease in
the abundance of algae in the lake. If this happens, it would be an example of - ANS-The law of
limiting factors
Bats and swallows both feed on flying insects, but they do not compete because bats feed at
night and swallows feed during the day. Although bats and swallows live in the same habitat,
they occupy different________. - ANS-niches
Mangroves are much more abundant near Port Fourchon today than they were 30 years ago
because - ANS-There has not been a hard freeze since 1989
The two general categories of energy are potential energy and ________. - ANS-Kinetic energy
The six most abundant elements in organic matter are? - ANS-nitrogen, carbon, oxygen,
hydrogen, phosphorus, and sulfur.
A bag of fertilizer is labeled 12-18-20. What is the percentage of organic matter in the fertilizer?
- ANS-Cannot tell
Plants that contain nitrogen-fixing bacteria in their root nodules are called__________. -
ANS-legumes
Denitrification is a microbial process that occurs in soils and sediments depleted of ____. -
ANS-oxygen
In a population whose dynamics are characterized by logistic growth - ANS-The maximum rate
of population growth occurs halfway to carrying capacity
A population of organisms is liable to become extinct if the number of individuals - ANS-Falls
below the critical number
