Question

Q9. Describe igneous rocks.​

Answer 1

Answer:

Igneous rocks are defined as types of rocks that are formed when molten rock (rock liquefied by intense heat and pressure) cools to a solid state. ... Its texture depends on the shape, size, time period to cool down and solidify, and the arrangement of crystals in the rock.

Answer 2

Igneous rocks are defined as types of rocks that are formed when molten rock (rock liquefied by intense heat and pressure) cools to a solid state. Lava is molten rock flowing out of fissures or vents at volcanic centres (when cooled they form rocks such as basalt, rhyolite, or obsidian).