Seafloor spreading is the mechanism for Wegener’s drifting continents. Convection currents within the mantle take the continents on a conveyor-belt ride of oceanic crust that over millions of years takes them around the planet’s surface.
Q. How is seafloor spreading related to continental drift and plate tectonics?
Seafloor spreading disproves an early part of the theory of continental drift. Supporters of continental drift originally theorized that the continents moved (drifted) through unmoving oceans. Seafloor spreading proves that the ocean itself is a site of tectonic activity.
Q. How do plate tectonics affect the ocean floor?
Plate tectonics and the ocean floor Convection currents in the molten mantle cause the plates to slowly move about the Earth a few centimeters each year. As plates converge, one plate may move under the other causing earthquakes, forming volcanoes, or creating deep ocean trenches.
Q. What is the meaning of seafloor?
: the floor of a sea or ocean : seabed The Earth’s crust, in this view, is divided into several immense plates that make up the continents and seafloors, and that all float on a hot, plastic, subterranean “mantle.”— Walter Sullivan.
Q. What is in deep sea?
The deep-sea is defined as the part of the ocean below 200 meters depth. This environment Is considered extremely harsh with temperatures of below 5 degrees Celsius, extreme pressure (2,000 meters equals about 200 times the atmospheric pressure at sea level), and no sunlight.
Q. How deep can a human dive?
60 feet
Q. What Colour is deep ocean?
Deep Ocean® is a conservative yet appealing colour that mimics the richness and depth of the ocean, and the vast blue haze of a distant mountain range.
Q. Why are deep-sea animals so big?
Large creatures that exist in the deep oceans normally depend on food that drops from above them. It means that there is scarce food at this level. Thus, these deep swimming animals are more efficient and therefore become larger.
