Multiple choice general knowledge

What is the most common Rock on Earth?

  1. Breccia

  2. Basalt

  3. Jade

  4. Quartz
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Basalt is the most common rock type found in Earth's crust, particularly in the oceanic crust which covers about 70% of Earth's surface. It forms from the rapid cooling of basaltic lava and makes up the majority of the ocean floor. Continental crust has more varied composition, but overall basalt dominates Earth's rock volume.

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