What element may be stored in sandstone for millions of years?\nOptions:\n- (A) copper\n- (B) calcium\n- (C) carbon\n- (D) chemicals\n- (E) heat\n- (F) iron\n- (G) rock\n- (H) fossils
Let’s work this out in a step by step way to be sure we have the right answer.
(C)
Carbon may be stored in sedimentary rock for millions of years.

Sedimentary Rocks One of the commonest sedimentary rocks is sandstone.

Carbon may be stored in sandstone for millions of years.

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The final answer: (C)