With geothermal power – from natural hot (140 deg. F) water from an underground reservoir. The water (from Ice Age glaciers trapped by hardened lava from volcanic eruptions) is piped to radiators and hot=-water tanks throughout the city.
Geology
What a relief – this Geology category is exactly what you've been looking for, you stone-cold trivia champ. We'll be gneiss and say it: these questions rock!
Who first proposed that the geological processes occurring now can be used to understand the changes of the past?
Bauxite is the ore of which element?
What name is given to calcite deposits suspended from cave roofs?
What abrasive rock is produced by gases frothing in lava?
Global warming be damned. The 19th century biologist Louis Agassiz who studied Alpine glaciers was the first to propose that the Earth had been subject what phenomena in the past?
What name is given to a deep crack in a glacier?
WHAT IS THE EARTH’S MOST ABUNDANT METAL?
Amethyst is a type of which mineral?
Marble is formed by the metamorphosis of which rock?
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