Question

Which rocks are known as secondary rocks?
Give any one example of Igneous rock.
Give any one example of Metamorphic rock.
Name the component of volcano.
Name the type of volcanoes.
Name any volcano of Japan.​

Answer 1

Answer:

Igneous rock (derived from the Latin word ignis meaning fire), or magmatic rock, is one of the three main rock types, the others being sedimentary and metamorphic. Igneous rock is formed through the cooling and solidification of magma or lava. The magma can be derived from partial melts of existing rocks in either a planet's mantle or crust. Typically, the melting is caused by one or more of three processes: an increase in temperature, a decrease in pressure, or a change in composition. Solidification into rock occurs either below the surface as intrusive rocks or on the surface as extrusive rocks. Igneous rock may form with crystallization to form granular, crystalline rocks, or without crystallization to form natural glasses. Igneous rocks occur in a wide range of geological settings: shields, platforms, orogens, basins, large igneous provinces, extended crust and oceanic crust.

Answer 2

Answer:

(a)Sedimentary rocks

(b)basalt

(c)foliated

(d)The main parts of a volcano include the magma chamber, conduits, vents, craters and slopes. There are three types of volcanoes: cinder cones, stratovolcanoes and shield volcanoes.

(e)cinder cones, composite volcanoes, shield volcanoes, and lava domes.

(f)Hokkaido

Explanation:

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