Volcanoes, earthquakes and tsunamis are all caused by tectonic activity. They are the result of two plates shifting.
NOT
the election of a democratic leader in the Arab state of Tunisia.
MAYBE
the adoption of a democratic-leaning constitution in Libya.
<span>The head of state is mostly a ceremonial position in Germany and United Kingdom. </span>
By velocity, you are referring to the speed of sound. It can be modelled by the equation:
V = 331m/s + (0.6m/s/C) x T (where T stands for temperature and V stands for Velocity).
Plug in the numbers and you'll get 343m/s
Fishing is the leading industry in Greenland.