A which is mainly composed of fossils cemented by calcium carbonate is

Molten rock inside Earth's crust is called

The transformed rocks are called

A glassy rock having no crystals formed due to less time given is called

A stone which is used to sooth skin is glassy volcanic rock formed from lava froth is

A comparison between marble and limestone shows marble is more

Quartzite is transformed from

Fine grained calcium carbonate layer of rock formed from micro-organisms is

The rocks which are non-interlocking and porous are

After eruption of lava a type of rock is obtained called

Rock which is composed of sand-sized pallets of calcium carbonate formed in shallow water is

Metamorphic rocks are usually

Gneiss has been transformed from

Ashes and rock fragments cool and settle on earth's surface can form volcanic rock like

Iron-rich igneous rock includes

A comparison between metamorphic rock and its parent rock will yield different

Magma which flows out to the surface of Earth during a volcanic eruption is called

Iron-rich igneous rocks are denser than rocks which are rich in

Metamorphic rocks become magma on melting at high

The continual process in which a rock is changed into another rock is called