Potassium balances the effects of sodium and helps keep fluid levels within a certain range. Your body should maintain a specific amount of potassium in the blood, ranging from 3.6 to 5.2 millimoles per liter (mmol/L).
Mythology and Prophecy. The word 'volcano' comes from the little island of Vulcano in the Mediterranean Sea off Sicily. Centuries ago, the people living in this area believed that Vulcano was the chimney of the forge of Vulcan-the blacksmith of the Roman gods.
A volcano is a mountain where lava (hot, liquid rock) comes from a magma chamber under the ground. Most volcanoes have a volcanic crater at the top. When a volcano is active, materials come out of it. The materials include lava, steam, gaseous sulfur compounds, ash and broken rock pieces.When there is enough pressure, it causes the volcano to erupt. The pressure blows off the top of the volcano.ost volcanoes have a volcanic crater at the top. When a volcano is active, materials come out of it. The materials include lava, steam, gaseous sulfur compounds, ash and broken rock pieces. When there is enough pressure, it causes the volcano to erupt. The pressure blows off the top of the volcano.