Lava that hardens beneath the surface as magma pushes up through cracks is called?

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

Lava that hardens beneath the surface as magma pushes up through cracks is called?

Explanation:
Magma that cools and hardens underground is called an intrusion. When magma pushes up through cracks but never erupts onto the surface, it crystallizes beneath the ground instead of forming lava flows on top. Extrusion refers to lava that erupts onto the surface, while dikes and sills are specific kinds of intrusions (a dike cuts across rock layers, a sill runs parallel to them). Since the scenario describes underground solidification, the term intrusion fits best.

Magma that cools and hardens underground is called an intrusion. When magma pushes up through cracks but never erupts onto the surface, it crystallizes beneath the ground instead of forming lava flows on top. Extrusion refers to lava that erupts onto the surface, while dikes and sills are specific kinds of intrusions (a dike cuts across rock layers, a sill runs parallel to them). Since the scenario describes underground solidification, the term intrusion fits best.

More Multiple Choice Questions
Subscribe

Get the latest from Passetra

You can unsubscribe at any time. Read our privacy policy