Steam explosion major cause of human fatalities in volcanic eruptions. The 1986 Chernobyl nuclear disaster in Soviet Union was feared to cause major steam explosion (and resulting Europe-wide fallout) upon melting the lava-like nuclear fuel through the reactor's basement towards contact with residue fire-fighting water and groundwater. The threat was averted by frantic tunneling underneath the reactor in order to pump out water and reinforce underlying soil with concrete. When a pressurized container such as the waterside of a steam boiler ruptures, it is always followed by some degree of steam explosion. A common operating temperature and pressure for a marine boiler
Religion in Ukraine Ukraine. Muslims are mostly concentrated in Donbass, where they make up 6.0% of the population. In the same year, there are 229 registered Islamic organizations. In Crimea, which in 2014 was annexed by Russia, Crimean Tatar Muslims make up to 15% of the population. A major part of the south steppes of modern Ukraine at a certain period of time were inhabited by Turkic peoples, most of whom were Muslims since the fall of the Khazar Khanate. The Crimean Tatars are the only indigenous Muslim ethnic group in the country. The Nogays, another Muslim group who lived in the steppes