If calcite is the cementing agent:

A. The rock will have a hardness of 7.
B. The rock will always be reddish-brown.
C. The rock will react with acid.
D. None of the above.



Answer :

Final answer:

Calcite as a cementing agent in a rock will make it react with acid.


Explanation:

If calcite is the cementing agent:

  1. The rock will have a hardness of 7.
  2. The rock will react with acid, producing an effervescing or fizzing reaction.
  3. Therefore, the correct option is c. the rock will react with acid.

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