Question

Which phrase describes a feature of igneous rocks that cool quickly during formation?

small crystals
coarse surfaces
found beneath Earth’s surface
exposed after erosion occurs

Answer 1

The phrase that describes a feature of igneous rocks that cool quickly during formation is **small crystals**. When igneous rocks cool quickly, such as during volcanic eruptions, they typically have very small or no visible crystals because the cooling does not allow large crystals to form.