Vocabulary
the removal of forests to use the land for other reasons
deforestation
forms when certain gases and chemicals react with sunlight
smog
Land is a
resource
Water is a ___________ resource
renewable
The water and human wastes that are washed down sinks, showers, and toilets are called
sewage
use of a resource means using it in ways that maintain the resource for all future generations
sustainable
Children who live in high ozone areas are more likely to develop
asthma
"Early humans learned how plants grew, which were edible, and which were good medicines"
agricultural
Sometimes the sewage can leak into ______________ before it is treated.
groundwater
Gases that react in the sunlight to produce a form of oxygen is called a
ozone
are resources that are not replaced within a relatively short time frame
nonrenewable resource
Two types of Pollution
point source and nonpoint source
topsoil and nutrients washed away
soil erosion
"Safe Drinking Water Act (1974)" is a
Law that protects groundwater
A specific, identifiable pollution source is called a
point source
is either always available or is naturally replaced in a relatively short time
renewable resource
Sulfur Dioxide and Particulate material
Nitrogen Dioxides
Carbon monoxide
Ozone
Health Effects of Air Pollution
an area in which water covers the soil for all or most of the year
wetland
Occurs when heated water produced during industrial processes is released into waterways
Thermal Pollution
a pollution is widely spread and cannot be tied to a specific origin
nonpoint source
Erosion carries small particles of rocks and sand from the land into water called
sediment
In the late 1970’s, scientists discovered an area of severe ozone depletion or a “hole” in the ozone layer over the southern polar region. This was known as the
Ozone Hole
–Wood
–Paper
–Fuel
–Remove CO2 and add O2
–Food
Forest Resources
Excessive amounts of suspended soil particles can originate from erosion of agricultural lands
Sediment Pollution
The contamination of Earth’s land, water, or air is called
pollution