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.
4 degrees
Explanation:
Relatively steeper than the shelf, the slope angles down to the ocean basin at an average of 4 degrees in some areas, the angle may be as much as 25 degrees.
Fossil fuels, they are natural fuels (because they are made of living organisms)
If Smiley weighs more than Jill's car, Smiley is too heavy for the bridge.
