Exam 25: Human Impacts on the Biosphere

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Transportation-produced smog causes air to turn

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Classification. Answer the questions reference to the five terms listed below.
A change in the available food supply in a habitat will affect all of these.
survivorship
This is the maximum number of individuals that a given habitat can support.
age structure.
This is the relative proportion of individuals of each age.
age structure
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A change in the available food supply in a habitat will affect all of these.
survivorship
This is the maximum number of individuals that a given habitat can support.
age structure.
This is the relative proportion of individuals of each age.
age structure
This term is equal to the birth rate minus the death rate of a species.
growth rate
This is the average number of offspring born to each female over her reproductive lifetime.
net reproductive rate
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One current estimate claims that humans are responsible for the extinction of how many species per hour?

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Globally, what is the greatest killer of species?

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The carrying capacity of an environment is determined by

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Greenhouse gasses act to

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If one kind of plutonium isotope is not removed, the wastes from a nuclear power reactor must be kept out of the environment for how many years before they are safe?

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Fusion would be used to fuse hydrogen atoms to form

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Which gasses are considered "greenhouse gasses"?

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Choose the one most appropriate answer for each.
age structure
flattens out as carrying capacity is reached
population growth rate
the amount of glucose in a culture flask containing bacteria
limiting factor
how individuals are distributed at each age level for a population
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age structure
flattens out as carrying capacity is reached
population growth rate
the amount of glucose in a culture flask containing bacteria
limiting factor
how individuals are distributed at each age level for a population
S-shaped curve
the birth rate minus the death rate plus any inward or minus any outward migration
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Selecting the Exception Four of the five answers listed below are particulate wastes. Select the exception.

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In the United States, how many metric tons of pollutants are discharged into the atmosphere each day?

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Classification. Answer the questions in reference to the four steps of the nitrogen cycle listed below.
The total resources a population consumes and the resulting wastes that are returned to the environment.
ecological footprint
Resources that can be tapped indefinitely if they are replenished.
renewable resources
Fresh water and forests as resources.
nonrenewable resources
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Premises:
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The total resources a population consumes and the resulting wastes that are returned to the environment.
ecological footprint
Resources that can be tapped indefinitely if they are replenished.
renewable resources
Fresh water and forests as resources.
nonrenewable resources
Resources contained in finite, limited amounts.
pollutant
A substance that in some way harms the health, activities or survival of a population.
renewable resources.
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The unequal distribution of acid rain over the United States is closely correlated with

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Man's pollution of public water sources includes

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How many years did it take for the world population to reach approximately one billion?

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Plastic bags may still be intact after

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A single place or outlet that causes pollution is a

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The rate of increase for a population refers to what kind of relationship between birth rate and death rate?

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Which factor is NOT characteristic of a city primarily plagued by photochemical smog?

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