Multiple choice

The type of rock largely found in sea bottom.

  1. Igneous rock

  2. Basalt

  3. Inselberg

  4. coal

  5. Molten core

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Basalt is the predominant rock type found on the ocean floor, formed from volcanic eruptions at mid-ocean ridges. It is a fine-grained igneous rock that makes up the majority of the Earth's oceanic crust. While basalt is itself an igneous rock, option A is too general - the question specifically asks for the main rock type of the sea bottom.

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