Such volcanoes are devastating, but very rare. The last one happened at Toba in Sumatra, Indonesia, 74,000 years ago. The active volcanic system at Yellowstone National Park has resulted in super-eruptions-the most recent happened 640,000 years ago. Yellowstone's volcanism is powered by magma rising from a hotspot.
A biased opinion is based on a preconceived notion or idea about a thing, person or group of people based on personal beliefs. In psychology, a bias is known as a cognitive shortcut.. It is based on the idea that the human brain, in order to conserve energy, naturally looks for shorter paths to conclusions by using what has been ingrained to draw speedy conclusions.
opinion and belief mean a judgment that someone thinks is true. opinion is used when the judgment is not yet final or certain but is founded on some facts. belief is used if the judgment is certain and firm in a person's own mind without regard to the amount or kind of evidence.pinion and belief mean a judgment that someone thinks is true. opinion is used when the judgment is not yet final or certain but is founded on some facts. belief is used if the judgment is certain and firm in a person's own mind without regard to the amount or kind of evidence.