Sea-Floor Spreading, plate tectonics,and continental drift. Are all parts of the earth,that make the Earth still survive today.Seafloor Spreading is a geological process in which tectonic plates, large slabs of Earth’s lithosphere split apart from each other. Seafloor spreading helps us in many ways. One way is that, it makes up the the oceanic crust. Another way is that it makes large mountain ranges, that rise from the ocean floor.Plate tectonics is the theory that Earth’s outer shell is divided into several plates that glide over the mantle, the rocky inner layer above the core. These plates make up Earth’s outer shell, called the lithosphere. (This includes the crust and uppermost part of the mantle).There are 3 plate boundaries, Transform, Divergent, and Convergent. …show more content…
For instance, Alfred wegener proved that the continents moved apart. But he could not prove how they moved. We later found out it was from plate tectonics,convection currents, and seafloor spreading. Convergent boundaries can form mountains, like Mt.Everest, Mt.Rushmore and many more. But extremists like to climb mountains like Everest. And from this many people have died from trying to climb these magnificent features. Most of the people died from the weather conditions.

Instead of talking about the bad things I will now recall some good things. All of these scientific theories do contrast as well. Continental drift and convection currents are what made the continents move apart. And make the shape of what they are today.Seafloor spreading and plate tectonics cause many of our land masses to look and shape like they do today.For instance A transform boundary formed the San Andreas Fault in California. Volcanoes can form from divergent boundaries.But their is a similarity between a divergent boundary and convergent boundary. Both of these plates make mountains, and lots of