Question

2. How are igneous rocks formed? Give two examples of igneous rocks and their uses.
3. Why are sedimentary rocks formed in layers?
re minerals? List any three uses of minerals​

Answer 1

2 answer :-  

Igneous rocks are formed from the solidification of molten rock material. There are two basic types. ... Examples of intrusive igneous rocks are diabase, diorite, gabbro, granite, pegmatite, and peridotite. Extrusive igneous rocks erupt onto the surface, where they cool quickly to form small crystals.

3 answer:-  

Sedimentary rocks are formed from pre-existing rocks or pieces of once-living organisms. They form from deposits that accumulate on the Earth's surface. Sedimentary rocks often have distinctive layering or bedding

Answer 2

Explanation:

Igneous rocks form when magma (molten rock) cools and crystallizes, either at volcanoes on the surface of the Earth or while the melted rock is still inside the crust. All magma develops underground, in the lower crust or upper mantle, because of the intense heat there