Which of the following is an example of an igneous rock? A. Shale B. Granite C. Marble D. Limestone
Answer: B. Granite
Which of these rocks is classified as a sedimentary rock? A. Basalt B. Gneiss C. Sandstone D. Obsidian
Answer: C. Sandstone
Marble is formed from limestone through heat and pressure. What type of rock is marble? A. Sedimentary B. Igneous C. Volcanic D. Metamorphic
Answer: D. Metamorphic