Why do black holes exist and why do neutron stars exist? i can't seem to find anything online explaining why they might actually exist

Iheard he was so amazing they named a whole city after him somewhere in california, absolute hero, they named a country in europe after him it’s called france, they just decided to change the o to an e because yknow, bants ennit

This question has already been answered by someone else.here is a link.  hope that it .

Explosive eruptions are the most hazardous, involving large volumes of tephra and gases emitted from the volcano. lahars, pyroclastic flows, ashfall, and many other volcanic hazards are commonly associated with explosive eruptions. explosive eruptions are very dangerous. basically, any form of hazard can occur.