The Mid-Atlantic Ridge

The Mid-Atlantic Ridge is a large underwater chain of mountains formed by magma and lava moving up through the crack between plates.

The Nasca and Antarctic Plates converge on the South American continent, creating the Andes Mountains.

Fossil evidence found in Antarctica suggests a much warmer climate in the past, indicating that tectonic plates have changed their locations over billions of years.

<p>Tectonic plates are large slabs of the Earth's lithosphere. They are made of the rocky crust and the thin solid portion of the mantle.</p> Signup and view all the answers

<p>There are 7 major plates, 8 minor plates, and some very small micro plates, making up the total of tectonic plates on Earth.</p> Signup and view all the answers

<p>The two types of crust on Earth are basaltic oceanic crust, found under oceans, and continental crust, which is less dense and mostly composed of granite.</p> Signup and view all the answers

<p>The theory of plate tectonics states that Earth's crust is broken up into plates that slowly float and move on top of the asthenosphere.</p> Signup and view all the answers

<p>There are seven major tectonic plates.</p> Signup and view all the answers

<p>The Pacific plate is the only exception as it lies beneath the Pacific Ocean.</p> Signup and view all the answers

<p>The basic principle of the Theory of Plate Tectonics is that the Earth's lithosphere is divided into several large tectonic plates that move and interact with each other.</p> Signup and view all the answers

<p>The 7 major tectonic plates, in order from largest to smallest, are: the Pacific Plate, the North American Plate, the Eurasian Plate, the Antarctic Plate, the Indo-Australian Plate, the South American Plate, and the African Plate.</p> Signup and view all the answers

<p>The Ring of Fire is a zone of active volcanoes located around much of the Pacific Plate. The Pacific Plate is associated with the Ring of Fire.</p> Signup and view all the answers

<p>Plate tectonics is the theory that Earth's crust is broken up into plates.</p> Signup and view all the answers

<p>There are seven major tectonic plates.</p> Signup and view all the answers

<p>The Mid-Atlantic Ridge is a long mountain range that forms the boundary of many major tectonic plates.</p> Signup and view all the answers

<p>Tectonic plates are sections of the Earth's crust that float on top of the asthenosphere.</p> Signup and view all the answers

<p>There are seven major tectonic plates.</p> Signup and view all the answers

<p>The Pacific plate is mainly underwater.</p> Signup and view all the answers

<p>The Eurasian plate.</p> Signup and view all the answers

<p>The Antarctic plate.</p> Signup and view all the answers