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.
In 1840, these become Canada<span> East and </span>Canada<span> West after the British Parliament unified Upper and Lower </span>Canada<span> into the Province of </span>Canada<span>. This territory was redivided into the Provinces of </span>Quebec<span> and Ontario at Confederation in 1867. Each became one of the first four provinces.
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The entire United States and the rest of the world serve as the hinterland for all of the following cities except Tucson.
Many animals that live in the river depend on the recycling of the nutrients.
