________________1.These are rocks from magma that cools and solidifies within the crust of
the Earth.
________________2.These rocks are surrounded by preexisting rocks known as country
rocks.
________________3.These rocks are formed due to slow cooling of magma.
________________4.These rocks are formed from magma due to an erupting volcano.
________________5.These rocks are formed from the consolidation and precipitation of
weathered, decayed and disintegrated pieces of other rocks.
________________6.These rocks are formed from the processes of cementation and
compaction.
________________7.These rocks are formed because of heating, pressure and chemical
reactions deep underground.
________________8.These rock types are usually more crystalline, harder and denser than the
rocks where they originated.
________________9.These rocks are formed from rock fragments such as sand, gravel or clay.
________________10.These rocks are formed from the evaporation of ocean or saline lake
waters​