VOLCANOS FEB 09, 2016
Volcanic hazards 50-60 volcanos erupt each year. 1500 active volcanos
1- 500 million people live close to volcanos because the soil is really good and fertile
Table 4.3 dont have to know!
Volcanism and volcanos, a lot of volcanos tha
Natural hazards Feb 2nd
Earth quake shaking: 1- magnitude
3-local: soil is very soft
Types of seismic waves (important) remember
1- P- waves: are fast and travel in solid and liquid
2- S-waves: are slow and travel in solid only
Natural hazards and disasters
Jan 19, 2016
Each layer has physical and chemical components, the center of our planet is resident by the inner core.
And outer core.
They are diff by the composition and the strength of the rocks.
The outer core, has more