1. Two igneous rocks.
Answers
Answer:
They are:
Explanation:
Rock.
Granite.
Pumice.
Felsic and mafic rocks.
Basalt.
Perlite.
Rhyolite.
Trachyte.
Answer:
BASALT AND GRANITE
Explanation:
Magmas are complex liquids that vary greatly in composition and properties. They have temperatures as great as 1,400 °C and often originate in regions 50 to 200 km deep in Earth. They may be entirely liquid or partially crystalline, containing some crystals of high-temperature minerals such as leucite, olivine, or pyroxene. Because magma has a lower density than the solid upper mantle and crust of Earth, buoyancy moves it upward. The race between upward movement and cooling ultimately determines whether magma becomes an intrusive or extrusive igneous rock.
Magma solidifies as an intrusive rock if it crystallizes before it reaches the surface. Intrusive rocks form plutons (a general term given to any intrusive igneous rock body), so geologists sometimes use the terms intrusive and plutonic interchangeably.
Igneous rocks and minerals form from magma, molten rock that originates beneath Earth’s surface. Magma often collects in large magma chambers at depth in Earth, but magma is also mobile and can flow through fissures and sometimes reach the surface. Mid-ocean ridges and subduction zones contain most magmas at or near Earth’s surface. Continental rifts and hot spots, places where anomalous heat rises from depth, account for the rest.