Chapter 1 Flashcards
environmental
science
an interdisciplinary study of how humans inter-
act with the living and nonliving parts of their environment
Ecology
the biological science that studies how organisms, or living things, interact with one another and with the environment
Organisms
Living things
Species
a group of organisms that have a
unique set of characteristics that distinguish them from
all other organisms and, for organisms that reproduce
sexually, can mate and produce fertile offspring.
Ecosystem
a set of organisms within a defined area
or volume that interact with one another and with
their environment of nonliving matter and energy
Reliance on solar energy
The sun warms the planet and supports photosynthesis
Biodiversity
This refers to the astounding variety of organisms, the natural systems in which they exist and interact
(such as deserts, grasslands, forests, and oceans), and the natural services that these organisms and
living systems provide free of charge (such as
renewal of topsoil, pest control, and air and water
purification)
Chemical cycling or Nutrient cycling
this circulation of chemicals from the environment (mostly from soil and water) through organisms and back to the environment is necessary for life.
Natural Capital
the natural resources and natural services that keep us and other forms of life alive and support our human economies
Natural Resources
materials and energy in nature that are essential or useful to humans
Natural services
processes in nature, such as purification of air and water and renewal of topsoil, which support life and human economies
Resource
anything that we can obtain from the environment to meet our needs and wants
Perpetual Resource
Solar energy
Renewable Resource
A resource that takes anywhere from several days to several hundred years to be replenished through natural processes
Sustainable Yield
The highest rate at which we can use a renewable resource indefinitely without reducing its available
supply
Nonrenewable Resources
resources that exist in a fixed quantity, or stock, in the earth’s crust
Reuse
involves using a resource over and over in the same form
Recycling
involves collecting waste materials and processing them into new materials