Igneous: These rocks are volcanic in nature. They are split into two categories in where they cool/crystallize: intrusive (internal) and extrusive (external). Intrusive volcanic rocks cool slowly, so they contain (usually) large crystals, like granites. Extrusive rocks are quite the opposite, in which they cool very quickly. This is where you get your obsidian glass and basalts. Sedimentary: These rocks are depositional and categorized by the kind of sediment it is made up of. Metamorphic: This can be the offspring rock of either a morphosed igneous or sedimentary rock. This metamorphism is accomplished by heat and/or pressure, and during a great length of time.
i think is chemical composition
its not chemical composition, it's how they were formed
sedimentary, igneous, metamorphic
sedimentary, metamorphic, and igneous
Rocks are classified into three groups based on how they are formed. Igneous rock is formed when magma cools and crystallizes. Sedimentary rock is formed when the products of weathering and erosion are compacted and cemented to form new rock. Metamorphic rock is formed when existing rock is changed by heat, pressure or chemical change into a new kind of rock.
They are mechanically formed sedimentary rocks, such as Sandstone and Conglomerate.
Carl Woese
Metamorphic, igneous and sedimentary
sediment
the three types of rocks are classifed based on theire mode of formation or occurence where, they are formed but not of the todays occurence.
Rocks are classified into three groups based on how they are formed. Igneous rock is formed when magma cools and crystallizes. Sedimentary rock is formed when the products of weathering and erosion are compacted and cemented to form new rock. Metamorphic rock is formed when existing rock is changed by heat, pressure or chemical change into a new kind of rock.
plants are classified by people putting plants in three different groups
the three courses in a restaurant are appetizer,entree',dessert
Resources are classified into three groups. They are -natural resourcesman - made resources andhuman resources
Igneous, metamorphic and sedimentary are the three rock types.
Igneous rock, metamorphic rock, and sedimentary rock.
The dynamic changes between the three main rock groups
The two groups of metamorphic rock are foliated and nonfoliated. Metamorphic rocks can also be classified as contact and regional.
They are mechanically formed sedimentary rocks, such as Sandstone and Conglomerate.
animals, microorganisms and plants.
something that i don't care about bye hahaha