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Geog:Rocks
chapter(2)
Question | Answer |
---|---|
Igneous rock | formed when hot,molten volcanic material cooled down and became solid. Ex.Granite and basalt |
Sedimentary rock | formed from the compressed remains(sediments)of animals,plants and other rocks. Ex.limestone,sandstone,coal and shale. |
Metamorphic rock | they were once Igneous or Sedimentary rocks which were changed by great heat or pressure. Ex.marble,quartzite. |
Granite | igneous |
Basalt | igneous |
Limestone | sedimentary |
Coal | sedimentary |
Shale | sedimentary |
Sandstone | sedimentary |
Marble | sedimentary-metamorphic |
Quartzite | sedimentary-metamorphic |