Posted on April 1, 2022 (Updated on July 9, 2025)
What stone is harder than slate?
Regional SpecificsThe Mohs scale has been adjusted to account for stone countertop options today. According to this new scale, the hardest is soapstonesoapstoneBy mass, “pure” steatite is roughly 63.37% silica, 31.88% magnesia, and 4.74% water. It commonly contains minor quantities of other oxides such as CaO or Al2O3. What is harder granite or slate? The basic
Posted on April 1, 2022 (Updated on July 9, 2025)
What is the legend of iztaccíhuatl and popocatépetl?
Regional SpecificsIn Aztec mythology, Iztaccíhuatl was a princess who fell in love with one of her father’s warriors, Popocatépetl. The emperor sent Popocatépetl to war in Oaxaca, promising him Iztaccíhuatl as his wife when he returned (which Iztaccíhuatl’s father presumed he would not). What is the legend of Popocatepetl & Iztaccíhuatl a love story? Popocatepetl and
Posted on April 1, 2022 (Updated on July 9, 2025)
Which island is the largest in the Aleutian Islands chain of Alaska?
Regional SpecificsAttuAttu (the farthest from the mainland), and Unalaska, Umnak, and Unimak in the Fox Islands. What is the largest city in the Aleutian Islands? Unalaska (Aleut: Iluulux̂, Russian: Уналашка) is the chief center of population in the Aleutian Islands. The city is in the Aleutians West Census Area, a regional component of the Unorganized Borough
Posted on April 1, 2022 (Updated on July 9, 2025)
What year did Thistle Utah flood?
Regional Specifics1983April 1983 obliterated the tiny town of Thistle in Utah County. In 1983, the most costly landslide in US history swept down on the tiny town of Thistle, damming up the Spanish Fork River, and severing the rail line that connects Salt Lake City with Denver. When did Thistle Utah flood? April 1983 In April
Posted on March 31, 2022 (Updated on July 9, 2025)
What are the most important rock forming minerals?
Regional SpecificsThe rock-forming minerals are: feldspars, quartz, amphiboles, micas, olivine, garnet, calcite, pyroxenes. Minerals occurring within a rock in small quantities are referred to as “accessory minerals”. What are the two main rock-forming minerals? The two main families of rock forming minerals are silicate minerals and non-silicate minerals. Silicate minerals are silicon-oxygen chemical compounds. They are
Posted on March 31, 2022 (Updated on July 9, 2025)
When was the continental drift theory proposed?
Regional Specifics19121912, but it was widely ridiculed and soon, mostly, forgotten. Wegener never lived to see his theory accepted—he died at the age of 50 while on an expedition in Greenland. Only decades later, in the 1960s, did the idea of continental drift resurface. Where was the continental drift theory proposed? Scientists have long noticed the