Which of the following properly describes a seamount? A seamount is a volcano that forms on the ocean floor.
A seamount is an underwater mountain formed by volcanic activity.
seamount. an active volcano that occurs along the crest of the mid-ocean ridge.
seamount, large submarine volcanic mountain rising at least 1,000 m (3,300 feet) above the surrounding deep-sea floor; smaller submarine volcanoes are called sea knolls, and flat-topped seamounts are called guyots.
Seamounts are underwater mountains that rise hundreds or thousands of feet from the seafloor. They are generally extinct volcanoes that, while active, created piles of lava that sometimes break the ocean surface.
Seamounts have a big effect on the deep-sea environment. They accelerate ocean currents, generate waves, increase upwelling, and amplify tides. These changes improve the food and nutrient supply for filter feeders while removing waste and reducing sediment build-up.
When volcanoes form on the seafloor, they build up over time as they erupt volcanic lava that cools to become basalt. If a volcano does not reach the surface of the ocean, it is called a seamount.
2:5213:14The Hidden World of Seamounts - YouTubeYouTubeStart of suggested clipEnd of suggested clipThe same process responsible for the formation of many island chains. At mid-ocean ridges theMoreThe same process responsible for the formation of many island chains. At mid-ocean ridges the converging tectonic plates collide at boundaries called subduction zones one plate is subducted or forced