The Origin of the Holes on This Rock Surface from Hawaii

question 60

Multiple Choice

The origin of the holes on this rock surface from Hawaii is:

• A) rainfall impact during solidification.
• B) microbiological action,that is,microbes decompose organic material which is incorporated into solids.
• C) gas that escaped during lava solidification.
• D) all of these.
• E) unknown,the rock could come from another planet.

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