Ap Environmental Science: Sustainability

food production- - now: producing enough food to feed _____ billion people. per capita production possibly leveling off -future: unclear. need to feed _____ billion by year 2050

8, 10

which of the following practices would have the biggest impact on achieving global sustainability? a. reducing human population size b. replanting deforested areas c. recycling aluminum cans d. using fuel-efficient vehicles

a

a sustainable society would emphasize a. maintaining the current rates of energy flow and resource use b. converting the world's high-quality energy resources to low-quality heat c. recycling both matter and high-quality energy d. using energy efficiently and reusing and recycling matter

d

the goal of sustainability is human use of resources without _____ of the resources for future generations

depletion

high biodiversity is an ecosystem means that there is a great variety of _____ and _____ in the ecosystem

genes, species

average global surface temperature and co2 concentration- -now: increasing -future: will continue to _____, at least short term

increase

biological diversity- -now: many extinctions; extinction rate _____ -future: extinctions will _____

increase, continue

human population- -now: still _____, but growth rate _____ -future: population _____ off

increasing, decreasing, leveling

lower and less biodiversity = _____ sustainable

less

_____ is the maximum amount of resource that can be harvested without compromising the future availability of that resource (the maximum harvest that will be replaced by pop. growth)

maximum sustainable yield

problems with _____: -life histories and survivorship strategies -birth and death rates -true carrying capacity of the system -all can be very political

maximum sustainable yield

higher and more biodiversity = _____ sustainable

more

resource depletion- -now: _____ depletion for many. human ingenuity develops "new" resources. efficiency of use is increasing in some cases -future: unkown

rapid

_____ refers to humans living on earth and their use of resources without depletion of the resources for future generations.

sustainability

environmental indicators that can guide humans to _____ include biological diversity, food production, average global surface temperatures and co2 concentrations, human population, and resource depletion

sustainability

the biodiversity of an ecosystem contributes to the _____ of that ecosystem

sustainability

_____ is the amount of a renewable resource that can be taken without reducing the available supply

sustainable yield