"The ordinary man knows that [Saudi Arabia] is the largest oil producer in the world, yet at the same time he is suffering from taxes and bad services. Now the people understand the speeches of the ulemas in the mosques--that our country has become an American colony. They act decisively with every action to kick the Americans out of Saudi Arabia. What happened in Riyadh and [Dhahran] when 24 Americans were killed in two bombings is clear evidence of the huge anger of Saudi people against America. The Saudis now know their real enemy is America." - Osama Bin Laden, July 10th, 1996
As the magma from the volcano rises up it begins to settle as crystals and causes the chemical compositions to change and the magma has less of magnesium and more of the silica contents.
A volcano that has more of silica oxide and a high temperature but low silica contents results in a more fluid or basaltic magma and a high content result in a viscous magma and they are of high explosive in nature like the Stromboli volcano and Mount Vesuvius.
1) Hunting: People can over-hunt a species killing too many of them too fast. 2) Global warming: A place can get to hot for them to survive their anymore like coral reefs for example. 3) Destruction of habitats: This can leave animals defenseless and open to attack.
