Crust composition and thickness?

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 $24.99Unlock all

Prepare for the Tectonic Hazards Test with our comprehensive study guide. Use flashcards and multiple-choice questions, each with hints and explanations. Master the material and ace your exam!

Multiple Choice

Crust composition and thickness?

Explanation:
The main idea is that Earth’s crust is the thin, solid outer shell made of rock, with thickness that varies a lot depending on location—roughly 5 km beneath the oceans and up to about 50 km under continents. Describing it as a layer of sand and rock that ranges from about 5 to 50 km thick fits this idea because it communicates both its rocky nature and its variable thickness. The other options describe substances that aren’t crust: water would be the ocean, gas would be the atmosphere, and molten lava points to magma beneath the crust.

The main idea is that Earth’s crust is the thin, solid outer shell made of rock, with thickness that varies a lot depending on location—roughly 5 km beneath the oceans and up to about 50 km under continents. Describing it as a layer of sand and rock that ranges from about 5 to 50 km thick fits this idea because it communicates both its rocky nature and its variable thickness. The other options describe substances that aren’t crust: water would be the ocean, gas would be the atmosphere, and molten lava points to magma beneath the crust.

More Multiple Choice Questions
Subscribe

Get the latest from Passetra

You can unsubscribe at any time. Read our privacy policy