6.1 A Changing Landscape
The practice of farming
Agriculture
resources that can regenerate if they are alive or replenish if they are nonliving.
what is a renewable resource
The sum of all the genetic diversity among all the organism in the biosphere.
What is biodiversity?
between 20-50 kilometers above earth's surface, the atmosphere contains a relatively high concentration of gas called
the ozone layer
The removal of soiL by water or wind.
What is erosion?
a resource that cannot be replenished by natural processes
non renewable resource.
Is the total of all genetic information carried in living things.
What is genetic diversity?
The decline in the fish catches since 1997.
What does over-fishing caused?
a species whose population is in declining in a way that places it in danger of extinction
endangered species
Is a harmful material that can enter the biosphere.
What is a pollutant?
Is the variety of habitats, communities, and ecological processes in biosphere.
What is Ecosystem Diversity?
Cancer, damage eyer, reduces resistance to disease.
What does UV radiation causes?
the management of natural resources including the preservation of habitats and wildlife.
conservation
humans obtained food by doing this for most of our human history
hunting and gathering
loss of forests
deforestation
a species that introduced to a new habitat and reproduce rapidly.
invasive species.
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The farming of fish and other aquatic organisms for food.
What is aquaculture?
list three fossil fuels
coal, oil, and natural gas.
a mixture of chemicals that occurs as a gray- brown haze in the atmosphere
smog
Pollution, hunting, destroying habitat, contributing climate.
What are four ways that human activity reduces biodiversity?
WHEN A SPECIES DISAPPEARS FROM THE BIOSPHERE
EXTINCTION