Exam (elaborations)
ENVS 1000 - Exam 1 (1)
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- Pennsylvania Real Estate Fundamentals
ENVS 1000 - Exam 1 (1)
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ENVS 1000 - Exam 1environmental science - ANS-the study of the environment and the solution of
environmental problems
environment - ANS-all of the physical (climate, geography..), chemical (air quality,
content of the atmosphere..), and biological (survival rates, adaptations..) factors and
processes that determine the growth and survival of an organism or community of
organisms
sustainability - ANS-meeting the needs of the present in an equitable and fair fashion
without compromising the availability of future generations to meet their own needs
(optimum sustainable yield)
ecosystem services - ANS-multitude of resources and processes that the ecosystem
supplies to humans
-provisioning services -cultural services
-regulating services -supporting services
ecosystem - ANS-all of the organisms and their physical and chemical environment
within a specified area (ex. forests, coral reefs, taiga, prairies..)
ecosystem functions - ANS-ecosystems include biota (living organisms) and their abiotic
(nonliving) (climate, fire, precipitation..) environment
abiotic-determines the distribution of organisms that live there
principals of ecosystem functions - ANS-1) matter and energy are neither created nor
destroyed
2) ecosystems are always open to gains and losses of matter and energy - ecologists
assign arbitrary boundaries to ecosystems
3) ecosystem stability - dynamic homeostasis/adaptation, ability to regulate themselves,
positive/negative feedback
4) ecosystem change
ecosystem integrity - ANS-web of interactions that regulate ecosystem functions
scientific method - ANS-ask a question
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