you never know when the volcano is going to erupt or shoot ash...it is better if you just stay away from them period.
oxygen
You can use a rang DONT COPY ITS WRONG
ocean drawbacks are, submarines if the submarine has a mistake it can kill a person. volcanoes drawbacks are, if you fall in on you can die.
Two challenges that volcanologists face investigating volcanoes are access to the volcano and the heat involved. Volcanoes can be very unpredictable, spewing out gas, rocks, and fiery balls of lava. For those that can get close enough to the crater or lava flows, the heat can be enough to stop them in their tracks.
Exploring along the Missippi river.
EyjafjallajökullBárdarbunga grimsvótnheklakatlalakisurtseythese are some names of volcanoes in Iceland.
volcanoes in guatemala
The British Isles are a geographical feature and not a political entity so I'm not sure what challenges they could have. No tsunamis, no earthquakes, no hurricanes, no volcanoes, but it can be a bit miserable in winter.
Yes, many deserts have volcanoes. Some are active, some are dormant and others extinct.
Land Volcanoes eat lamas and underwater volcanoes eat camals
some of Hawaii is made of volcanoes. but not all of it
Some islands may be built by undersea volcanoes.