Which term describes lava that erupts onto the surface and solidifies?

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $25.99Unlock all

Study for the California Science Test. Get ready for the 8th grade exam with flashcards and multiple choice questions, each question has hints and explanations. Prepare with confidence!

Multiple Choice

Which term describes lava that erupts onto the surface and solidifies?

Explanation:
Lava that erupts onto the surface and then solidifies is called an extrusion. This term describes magma reaching the surface as lava, flowing or erupting, and cooling to form volcanic rocks. In contrast, when magma cools and solidifies underground, it forms an intrusion, such as dikes or sills. Unconformity refers to a gap in the rock record, and the Law of Superposition is about the relative ages of layered rocks. Extrusions typically produce rocks with finer textures due to rapid cooling at the surface.

Lava that erupts onto the surface and then solidifies is called an extrusion. This term describes magma reaching the surface as lava, flowing or erupting, and cooling to form volcanic rocks. In contrast, when magma cools and solidifies underground, it forms an intrusion, such as dikes or sills. Unconformity refers to a gap in the rock record, and the Law of Superposition is about the relative ages of layered rocks. Extrusions typically produce rocks with finer textures due to rapid cooling at the surface.

More Multiple Choice Questions
Subscribe

Get the latest from Passetra

You can unsubscribe at any time. Read our privacy policy