yes they do
Volcanic eruptions doesn't help ! Volcanic rocks and derived soils are useful.
infrasound is more useful than sound for detecting volcanic eruptions because it traves a lot further than sound and is hear km away
They create new landforms and mabye some useful minerals.
No Because Volcanic Eroutions Dont Servre any useful purposes because the are mostley underground
The easiest way to distinguish between volcanic ash and volcanic dust particles is to compare their diameter. Seismographs can be useful in predicting volcanic eruptions because they measure earthquake activity.
None
No
It's plain and simple. As the eruption comes to a beginning, the place where the eruption should occur gets highly elevated. If certain surface was a bit flat, it wouldn't be anymore. Also, the vegetation and pretty much everything gets destroyed, but they say the volcanic earth can be useful sometimes.
because they give from something that houses can be bulit
Prediction.
Topaz is used for decorative purposes.
because it helps by growing plants? not so sure