A hale in the sea-floor through which fluid headed by lava erupts is called a hydrothermal __ Sediment Vent Ridge trench

## Step 1<br />The question is asking for the term that describes a hole in the sea-floor through which fluid, headed by lava, erupts. This is a geological phenomenon that occurs under the sea.<br /><br />## Step 2<br />The term "hydrothermal vent" is used to describe this phenomenon. Hydrothermal vents are fissures on the ocean floor that release geothermally heated water. This water can be rich in minerals and can support unique ecosystems.<br /><br />## Step 3<br />The other options provided, "Sediment", "Ridge", and "Trench", do not accurately describe this phenomenon. Sediment refers to solid material that is moved and deposited in a new location by water, wind, or ice. A ridge is a geological feature that consists of a chain of mountains or hills that form a continuous elevated crest. A trench is a long, narrow ditch.