2. The introduction of harmful materials into
the environment is called pollution!
Pollution is anything that harms the
environment – land, water or air.
3. You can help solve the problem of land
pollution by reducing the amount of trash
you create, reusing instead of buying new
and recycling.
The EPA (Environmental Protection
Agency) is a government agency that
serves us by forming laws and regulations
to protect the environment.
4. The surface of the
Earth is only covered
by about 3%
freshwater. (The
rest is ocean water or
frozen in ice caps.)
The main source of
our drinking water is
groundwater.
5. DDT is a dangerous pesticide
that was used to kill bugs and
was found to be harmful to
animals and people.
Mercury is a dangerous
mineral to humans and can
often cause problems if you
eat too much fish that has
lived in a contaminated area.
6. The mixture of smoke, fog and chemicals
is often referred to as smog.
The main cause of air pollution is the
burning of fossil fuels.
Fossil fuels include coal, oil and natural
gas.
The burning of fossil fuels also can cause
• Acid Rain
• Global warming
7. Nuclear power is
LESS harmful than
coal burning power,
but it can cause heat
pollution in lakes
which can cause fish
kills.
