3. WHAT IS LAVA, MAGMA AND A VOLCANO?
A volcano is a
"hole" in the
ground from
which lava flows.
VOLCANO
Inside the earth is a
hot mass of molten
rock and minerals. It is
boiling magma.
MAGMA
Lava, or hot magma,
which flows out of the
volcano, lifts the shell
up on one side, and
rebuilds it on the other.
LAVA
4. Fertility of volcanic soils
The use of very high
temperatures by power plants,
turbines, for space heating and
in greenhouse horticulture
Exploitation of geothermal
energy resources, also known as
"red coal", for the needs of the
economy
They cause far less air and water
pollution than conventional
power generating plants
Advantages of the volcano
