Hades is the greek god of underworld. who did he place in charge of guarding the gate outside his kingdom?
charon
styx
cerberus
fleetus

According to Greek mythology, Cerberus was the dog of Hades.

It was a giant three-headed monstrous dog, with a tail serpent and had many serpent heads on its back, its mission was to protect the doors of the Greek underworld to prevent the living souls from entering without asking permission to the death and prevent the dead souls to leave the place.

mount st. helens in washington erupts, causing a massive avalanche and killing 57 people on this day in 1980. ash from the volcanic eruption fell as far away as minnesota. seismic activity at mount st. helens, which is 96 miles south of seattle, began on march 16.