cooled _______ magma that reaches earths surface, is what created the Mid Atlantic Ridge.
Either sediment or lava
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Islands,mountains and plains are examples of?
weathering
The missing word to complete the sentence is "basaltic." Cooled basaltic magma that reaches Earth's surface is what created the Mid-Atlantic Ridge.
To arrive at this answer, we need to understand the geological process that creates the Mid-Atlantic Ridge. The Mid-Atlantic Ridge is a massive underwater mountain range that runs through the middle of the Atlantic Ocean. It is formed by a geological phenomenon known as seafloor spreading.
Seafloor spreading occurs at divergent plate boundaries, where tectonic plates move away from each other. In the case of the Mid-Atlantic Ridge, it is formed by the separation of the North American Plate and the Eurasian Plate. As these plates separate, magma rises from the Earth's mantle to fill the gap created by the moving plates.
The magma that reaches the surface during seafloor spreading is called basaltic magma. Basaltic magma is characterized by its low viscosity and high temperature, making it relatively fluid and hot. As the basaltic magma exits the Earth through cracks in the seafloor, it cools rapidly upon contact with cold seawater, solidifying and forming new crust.
Over time, repeated eruptions of basaltic magma and the subsequent cooling and solidifying of the magma contribute to the growth of the Mid-Atlantic Ridge. This process is known as volcanic activity. The solidified basaltic rock creates new oceanic crust, expanding the seafloor and pushing the tectonic plates further apart.
Therefore, "cooled basaltic magma" is the answer to the question about what created the Mid-Atlantic Ridge when it reaches Earth's surface.