In the United States and in many other countries, citizens have to register to vote "To <span>make sure people vote only once," since otherwise it would be very hard to track who has already voted. </span>
The event or incident that triggered long standing tensions in Europe and was the immediate cause of ww1 was the assasination of archduke Ferdinard and his wife sophie, in sarajavo by a Bosnian student.
<span>Basaltic magma is the
type of magma that is high in Fe (Iron), Mg (Magnesium), Ca (Calcium) and low
in K (Potassium) and Na (Sodium). Basaltic magma has low viscosity and
moderately fluid. It is partially melted and can usually be found in hot spots
and rift-zones.</span>