Question

Identify the following igneous rock . It has fine grain size and is extrusive.
A. Granite
B. Pumice
C. Both A and B
D. None of the above

Answer 1

Hint: On the basis of physical and chemical composition there are three types of rocks which are igneous sedimentary and Metamorphic rocks. And in this category of rocks there are different rocks such as granite graphite mica marble etc.

Complete answer:
Kinds of igneous rocks: Nosy, or plutonic, volcanic stone structures when magma is caught somewhere inside the Earth. Extrusive, or volcanic, molten stone is delivered when magma (lava)exits and cools over the Earth's surface. These are the stones that structure at ejecting volcanoes and overflowing gaps.
Attributes of Igneous Rocks
• The volcanic type of rocks does exclude any fossil stores.
• Most of the molten structures incorporate more than one mineral store.
• They can be either polished or coarse.
• These generally don't respond with acids.

Volcanic rocks have a wide assortment of employments. One significant use is as stone for structures and sculptures. Diorite was utilized broadly by antiquated developments for jars and other ornamental craftsmanship is as yet utilized for workmanship today (Stone is a molten stone utilized regularly in sculptures and building materials.
Pumice is a light-shaded, very permeable molten stone that structures during dangerous volcanic ejections. Numerous examples have a sufficiently high porosity that they can drift on water until they gradually become waterlogged.
• And rough in molding "stone washed" denim.
• An rough in bar and fluid cleansers, for example, "Magma Soap"
• An rough in pencil erasers.
• An grating in skin peeling items.
• A fine grating utilized for cleaning.
• A foothold material on snow-shrouded streets.
• A foothold enhancer in tire elastic.

Stone, coarse-or medium-grained meddlesome molten stone that is wealthy in quartz and feldspar; it is the most well-known plutonic stone of the Earth's outside layer, shaping by the cooling of magma (silicate dissolve) at profundity

Note: Volcanic rocks are otherwise called magmatic rocks. Molten rocks are separated into two sorts: plutonic and volcanic stone. Extreme heat pressure and temperature can change the properties of a particular rock.