ENVS 1126 LSU EXAM 2 (Aixin Hou)
Questions And Correct Answers
A declining dependency ratio
permits decreased spending on education and old-age medical expenses.
A person who dies of a heart attack at the age of 93 is more likely to have lived in a
developed country
As a cold front moves into an area of warm, moist air, we would expect to see cloud
formations as
the warm air rises and condenses
As environmental systems have declined, human well-being has improved. What is
the most probable reason for this "Environmentalist's Paradox"?
Enhanced food production has outweighed declines in ecosystem services.
At the mouth of the Mississippi River, large concentrations of nitrogen and
phosphorus flow into the Gulf of Mexico, causing nutrient overloading, algal blooms,
and extremely low levels of oxygen. One of the major revolutions in human history,
the ___________ __________________, is most responsible for this problem.
,Green Revolution
Converting forests to mostly paved urban areas has largely altered the hydrology of
the affected watersheds because
infiltration has decreased and surface runoff has increased
Even if a developing country reduces its birth rate and maintains replacement-level
fertility, its population will still continue to grow for several decades because
of_____________. This population growth is due to the current number of people in
the childbearing age-range.
population momentum
Global warming during the 21st century is expected to
speed up the hydrologic cycle
If a country experiences 7 births, 2 deaths, and 1 new immigrant every minute of a
year, how will its population change in one year?
the population will increase by about 3.2 million people
If r represents a gene for resistance to DDT, and to be resistant an individual must be
homozygous, choose the resistant individual(s) below:
, rr
In a country undergoing the demographic transition, population growth occurs
because ______.
the death rate declines first while the birthrate stays high
In any food web, biomagnification will result in the highest concentrations of toxins in
the
highest trophic level of the systems
In many coastal areas, springs of outflowing groundwater lie under the ocean.
________ occurs in coastal regions where the water table is falling due to
groundwater overdraft.
saltwater intrusion
In the western United States, rain shadows most frequently occur on
the leeward, east side of mountain ranges
Most molecular compounds that have a mass similar to water are gases at room
temperature. Because of the strong __________ bonds, water molecules are able to
stay condensed in the liquid state.
Questions And Correct Answers
A declining dependency ratio
permits decreased spending on education and old-age medical expenses.
A person who dies of a heart attack at the age of 93 is more likely to have lived in a
developed country
As a cold front moves into an area of warm, moist air, we would expect to see cloud
formations as
the warm air rises and condenses
As environmental systems have declined, human well-being has improved. What is
the most probable reason for this "Environmentalist's Paradox"?
Enhanced food production has outweighed declines in ecosystem services.
At the mouth of the Mississippi River, large concentrations of nitrogen and
phosphorus flow into the Gulf of Mexico, causing nutrient overloading, algal blooms,
and extremely low levels of oxygen. One of the major revolutions in human history,
the ___________ __________________, is most responsible for this problem.
,Green Revolution
Converting forests to mostly paved urban areas has largely altered the hydrology of
the affected watersheds because
infiltration has decreased and surface runoff has increased
Even if a developing country reduces its birth rate and maintains replacement-level
fertility, its population will still continue to grow for several decades because
of_____________. This population growth is due to the current number of people in
the childbearing age-range.
population momentum
Global warming during the 21st century is expected to
speed up the hydrologic cycle
If a country experiences 7 births, 2 deaths, and 1 new immigrant every minute of a
year, how will its population change in one year?
the population will increase by about 3.2 million people
If r represents a gene for resistance to DDT, and to be resistant an individual must be
homozygous, choose the resistant individual(s) below:
, rr
In a country undergoing the demographic transition, population growth occurs
because ______.
the death rate declines first while the birthrate stays high
In any food web, biomagnification will result in the highest concentrations of toxins in
the
highest trophic level of the systems
In many coastal areas, springs of outflowing groundwater lie under the ocean.
________ occurs in coastal regions where the water table is falling due to
groundwater overdraft.
saltwater intrusion
In the western United States, rain shadows most frequently occur on
the leeward, east side of mountain ranges
Most molecular compounds that have a mass similar to water are gases at room
temperature. Because of the strong __________ bonds, water molecules are able to
stay condensed in the liquid state.
