Which of the statements is/are correct?
1. Igneous rocks are classified into Extrusive and Intrusive rocks.
2. Sedimentary rocks are also called as Primary rocks
3. Marble is an example of Metamorphic rocks
4. Coal is a sedimentary rock
A. 1 only
B. 2 and 3
C. 1, 3 and 4
D. 2 and 4
Answer: Option C
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