a. Material in the form of gases from volcanic eruptions (ekhalasi), namely:
1) H2O, O2, N2O, CO2, SO2, CO, H2S, NH3, H2SO4
2) Sources of water vapor (fumarol)
3) poisonous gases such as H2S (solfator)
4) CO (mofet) hazardous and off
5) CO2 and SO2 gas, which makes Otis poor living creatures.
b. Material in the form of liquid in the form of hot water, namely:
1) Geyser, that geyser of a discharge falls on intermittent basis
2) makdani springs (mineral), which is the fountain of minerals containing sulfur, barium, arsenic which can be used as medicine
3) Lava, which is magma that reaches Earth's surface. If lava and water will be lava.
c. Dense volcanic material called piroklastis, either:
1) gravel
2) lapili
3) sand
4) ash
5) fluff
6) bomb (big rock).
Volcano that erupted very dangerous because:
a. Removing the lava flood very high temperature (hot lava)
b. Removing emulsion cloud. This cloud-hot (approximately 200 degrees Celsius)
c. Cause cold lava flood (lava mixed with heavy rain)
d. Cause high waves.
Several attempts to reduce the risk of a volcanic eruption:
a. Make water tunnels in the crater berdanau
b. Make observations posting volcano
c. Evacuate residents living on the slopes of the volcano will erupt.
The volcano has many benefits, including:
a. Fertilize the soil, because the experience weathering ash salt-garaman many much-needed plant
b. Be a catcher or bring rain
c. Expanding agricultural district because spray and volcanic
d. Cause mine minerals near the surface
e. A place of tourism.
