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Its definently "Pillow Lava".

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Q: Lava that forms underwater as rounded lumps?
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When lava cools under water often forms?

Pillow Lava forms when lava cools underwater. It appears in rounded lumps giving the pillow appearance. Good luck.


What forms umderwater in rounded lumps?

Pillow lava


What type of lava that erupts underwater and takes the form of round lumps?

Lava that erupts underwater and takes the form of round lumps is called pillow lava


Type of lava that erupts underwater and takes the form of round lumps?

Pillow lava


What is pillow lava?

Pillow lava is basaltic lava that forms rounded pillow like lumps. It forms when a volcano erupts fairly deep underwater. Lava erupts bu quickly crusts over, creating a bulbous formation. The crust then breaks and more lava spills out, continuing the process.See the link below for a video of pillow lava.


What type of lava erupts underwater and takes the form of round lumps?

it is called pillow


Why is most lava that forms on earth's surface unnoticed and unobserved?

Ddfg


When Lava cools underwater what usually forms?

Submarine volcanoes / Pillow lavas.


What are the four types of lava that form at hot spots and their characteristics?

Aa is lava that forms a thick ,brittle crust . Pahoehoe is a lava that forms a thin crust. Pillow lava forms when lava erupts underwater. Blocky lava is kool, stiff lava that does not travel far from thr eruption site.


Which is a rounded volcanic feature that forms when a mass of thick lava slowly erupts from the vent?

This is called a lava dome.


What impact does a volcano have on the hydrosphere?

Many Volcanoes have rivers that flowing off than or around then or even below them. If a volcano has a glacier on it and it erupts causing the glacier to melt and cause a flood. huge floods with lots of Debs is called a lahar. when a lahar stops moving it changes into a substance like cement, anything that is caught in it is stuck.


How does underwater lava differ from surface lava?

it doesn't