Wax, kerosene, and polyethylene glycol are found, all dissolved in water. Wax is, in general, non-toxic in humans. Kerosene, at least in the amount that could be found in a lava lamp, is not poisonous, but the polyethylene glycol, could be a problem.
In theory, there is no limit on the number of volcanoes that could erupt at once other than the number of active volcanoes themselves: while it is thus theoretically thinkable, that all 600 volcanoes (on land) known to have had eruptions during recorded history erupt at once, this is so unlikely that it can be excluded …
The eruption temperature of Kīlauea lava is about 1,170 degrees Celsius (2,140 degrees Fahrenheit). The temperature of the lava in the tubes is about 1,250 degrees Celsius (2,200 degrees Fahrenheit). The tube system of episode 53 (Pu’u O’o eruption) carried lava for 10 kilometers (6 miles) from the vent to the sea.
The lifespan of a volcano can vary from months to several million years, making such a distinction sometimes meaningless when compared to the lifespans of humans or even civilizations.
Sixty percent of all active volcanoes occur at the boundaries between tectonic plates. Most volcanoes are found along a belt, called the “Ring of Fire” that encircles the Pacific Ocean. Some volcanoes, like those that form the Hawaiian Islands, occur in the interior of plates at areas called “hot spots.”
How can we tell when a volcano will erupt? An increase in the frequency and intensity of felt earthquakes. Noticeable steaming or fumarolic activity and new or enlarged areas of hot ground. Subtle swelling of the ground surface. Small changes in heat flow. Changes in the composition or relative abundances of fumarolic gases.
Hawaii’s Big IslandFrom sea floor to peak, Mauna Loa, on Hawaii’s Big Island, is the tallest shield volcano on Earth.
There are many positive effects of volcanoes including: Fertile soils, tourism, geothermal energy, creation of new land and building materials. Volcanic soils are very fertile.
Without volcanoes, most of Earth’s water would still be trapped in the crust and mantle. Early volcanic eruptions led to the Earth’s second atmosphere, which led to Earth’s modern atmosphere. Besides water and air, volcanoes are responsible for land, another necessity for many life forms.
Volcanic gases react with the atmosphere in various ways; the conversion of sulfur dioxide (SO2) to sulfuric acid (H2SO4has the most significant impact on climate. Volcanoes can impact climate change.
