science
Grade-4-
Easy

Question

Which of the following rock has a smooth texture?

  1. Granite

  2. Pumice

  3. Basalt

  4. Obsidian

hintHint:

Obsidian rock has a smooth texture.

The correct answer is:

Obsidian


    • The obsidian rock has a smooth texture.
    • It has a glassy surface that seems like a laminated layer.
    • It is dark in color and is igneous rock.

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