it turns into steam
yes
Before a volcano erupts, there may be high frequency and low frequency earthquakes, changes in shape or size of the volcano, and tremors.
All the water falls back down to the ground.
If a volcano erupts more explosively, the lava spewing out tends to reach farther, possibly ruining a near by town. If it erupts more quietly, not as much lava tends to spew out. However, any eruption will cause harm to the atmosphere because it releases harmful pollutants.
Carbon dioxide and water vapor are commonly given off.
a volcano that starts and erupts under water
yes
Before a volcano erupts, there may be high frequency and low frequency earthquakes, changes in shape or size of the volcano, and tremors.
All the water falls back down to the ground.
If a volcano erupts more explosively, the lava spewing out tends to reach farther, possibly ruining a near by town. If it erupts more quietly, not as much lava tends to spew out. However, any eruption will cause harm to the atmosphere because it releases harmful pollutants.
When a volcano erupts the lava usually reaches water and when they collide it turns into obsidian (I know because of minecraft).
Carbon dioxide and water vapor are commonly given off.
It would most likely be in the form of water vapor seeing that it is 100s to 1000s of degrees hot.
When a volcano erupts and the lava hardens it can build up under water and over time, if enough builds up, the result will be an island
when a volcano erupts it will take time for crystals to bloom and come to life
That would be the result of a submarine volcano. Pillow lava is a common type of lava that submarine volcanoes produce.
A sea version of a volcano is called an underwater or submarine volcano. These volcanoes erupt beneath the surface of the ocean, releasing magma and gases into the water. They can create new islands or extend the size of existing ones.