very dangerous
As long as it stays nonactive, or dormant, it is fine.
Yes. Even without an eruption a dormant volcano may be prone to earthquakes, landslides, and gas emissions.
Yes they can because natural occurences can change that event
no, if a volcano is dormant for centuries is not less dangerous, for example, Mt. Vesuvius in naples, italy. It erupted and demised to whole towns. it waited for centuries to erupt, it could erupt again without warning and possibly be more dangerous.
dormant dormant
If a snail is dormant then that is part of its natural cycle, just like some bears hibernate. So you shouldn't revive it. When it is ready to wake up, then it will. If it starts to smell, then it's not dormant and you should add it to your compost bin. If I think something dangerous has happened to mine, I run it under lukewarm water.
I think any volcano is potentially dangerous. It was once thought that volcanoes were extinct but now scientist think volcanoes are active or dormant. So any volcanoe could erupt and be dangerous. Some are more likely to than others.
dormant
The word dormant is an adjective. Dormant means to be inactive or asleep.
It is active
many dormant and some active volcanoes; about 1,500 seismic occurrences (mostly tremors) every year; tsunamis; typhoons