Igneous rock derives it's name from the Latin word ignis which means fire. It is formed when the magma after volcanic eruption gets cool and solidified either on the surface of earth crust or inside the earth crust. These rocks are characterized by their hardness. These rocks undergoes no chemical weathering but exhibit very low mechanical or physical weathering may occur. Therefore, hardness is the property which can be used to identify the origin of an igneous rock.
Answer:
New River or Kanawha River
Explanation:
The New River, rising on the Blue Ridge in North Carolina, runs northward and then turns westward across the Appalachian Valley and the Alleghenies (where it becomes the Kanawha River) and empties into the Mississippi River basin.
Wegener was able to use evidence from climate change so as to be able to give support his theory in the sense that he used explained that an island in the Arctic Ocean do contains fossils of tropical plants.
Base on the theory that continents were once connected help in explaining the glacial striations however, if the continents always occupied their present-day positions, it will be hard to explain pattern of glacial striations since the theory of continental drift theory is based on the rotation of the Earth.
<h3>What is Wegener continental drift theory?</h3>
It should be noted that Wegener suggested that rotation of the Earth that come as a result of how the continents shift towards and apart from each other.
Learn more on continental drift theory at:
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1:Plates move away from one another at divergent boundaries. This happens at mid-ocean ridges<span>. Plates move towards one another at convergent boundaries; one plate is forced below another in a process called subduction.
2:</span><span>In areas where the </span>plates<span> come together, sometimes volcanoes </span>will<span> form. Volcanoes</span>can<span> also form in the middle of a </span>plate<span>, where magma rises upward until it erupts on the seafloor, at what is called a “hot spot.” The Hawaiian </span>Islands<span> were </span>formed<span> by such a hot spot occurring in the middle of the Pacific </span>Plate<span>.
I hope this helps!</span>
Answer:
Hot spots, transform boundaries, and cinder cones Some volcanoes, like the ones that form the Hawaiian Islands, occur in the interior of plates at areas that are called hot spots.
