Question

question: which word best describes an igneous rock with large crystals and a coarse-grained texture? answer options: select one of four metamorphic intrusive volcanic extrusive

Explanation:

1. Analyze each option:

• Metamorphic: Metamorphic rocks are formed from the transformation of existing rocks under heat and pressure, not related to igneous rock formation with large crystals. Eliminate this option.
• Intrusive: Intrusive igneous rocks form when magma cools slowly beneath the Earth's surface. Slow cooling allows large crystals to form, resulting in a coarse - grained texture.
• Volcanic: Volcanic rocks are extrusive igneous rocks that form from lava cooling quickly on the Earth's surface. Quick cooling leads to small crystals or a glassy texture, not large crystals. Eliminate this option.
• Extrusive: Extrusive igneous rocks (like volcanic rocks) cool quickly at or near the Earth's surface, so they have fine - grained or glassy textures, not coarse - grained with large crystals. Eliminate this option.

Answer:

B. Intrusive