Question

The rocks formed from molten magma are called

• A. Sedimentary rocks
• B. Igneous rocks
• C. Metamorphic rocks
• D. None of these

Answer 1

Answer:

B. Igneous rocks

> Cooling of magma done and form to rock on earth surface called Volcanic. Eg-Basalt or Trap. These are fine grained structure. > Cooling of magma done at shallow depth from earth surface called Hypa byssal. Eg. Dolerite. > These are fine grained and crystal line structure. Cooling of magma done at a considerable depth from earth surface called Plutonic. Eg-Granite. These are coarse grained crystalline structure.