Review: Rocks

1. Which of the following is true about rocks?

• A. Rocks are the building blocks of minerals.

• B. Rocks do not contain minerals.

• C. Most rocks are a mixture of minerals.

• D. Rocks are composed of only one mineral.

2. Which type of rock forms from sediments due to extreme heat and pressure over a long period of time.

• A. Igneous rock

• B. Metamorphic rock

• C. Sedimentary rock

• D. Volcanic rock

3. A rock was found near the mouth of a newly erupted volcano. What type of rock is that?

• A. Igneous rock

• B. Metamorphic rock

• C. Sedimentary rock

• D. Organic rock

4. This rock formed when lava cooled very quickly on Earth's surface. What specific type of rock is it?

• A. Intrusive/Plutonic rock

• B. Extrusive/Volcanic rock

• C. Sedimentary rock

• D. Metamorphic rock

5. Which is considered as importance of rocks in our daily life?

• A. Source of minerals

• B. Promotes tourism

• C. Source of information about Earth history

• D. All of the above