Mod+7.8+-+Courtney+C

= Dynamic Earth= =By Courtney Cotto= = = = =  Did you know that the ground beneath us is constantly changing? It really isn't as firm and solid as we think it is. We have so many forces i'd love to tell you about! Our Earth never stops and niether does the things that help formate it. 80% of our planet's earthquakes perk up along the pacific ocean's rim. This does have a name. It is called the Ring of Fire. Earthquakes are created when gigantic rock slabs that make up the Earth's upper layer collides or slides against eachother. Other quakes come up from fault. We have three activities that take place in the boundaries. Their is Divergent. Divergent is when the magma is rising in which this causes the plates to move a part. We have Convergent. In this activity plates collide and one plate dives under the other. Now, we have a Transform this is when two plates rub up against each other or shall i say grind. Volcanos are another land type that make up our world. Volcanos are like vents in our Earth. They are made from molten rocks, gases from earth's interior and debris. When thick magma and large proportions of gas build up under it's surface. We have eruptions which therefore expells rocks, lava and ash into the air. Another dynamic of our earth would be mountains. A mountain is a area of land that rises from the places around it. A mountain range is a group of closely spaced mountains. On the east side we have a boundary, the North American Plate and a boundary is to the north, and a boundary with the Philippine Plate to the south, a long with the Amurian Plate and the Okhotsk Plate. We have the southerly side which is a boundary with the African Plate to the western area, the Arabian Plate is in middle and the Indo-Australian Plate to the east. The westerly side consists of a divergent boundary with the North American Plate that forms the northern part of the Mid-Atlantic Ridge. This is the 3rd largest techtonic plate.