Consider the following statements 1 Sedimentary rocks are crystalline in structure whereas ign...........

Geography Earth Geology

Consider the following statements:

1. Sedimentary rocks are crystalline in structure whereas igneous rocks are non-crystalline in nature.

2. Sedimentary rocks often contain fossils whereas igneous rocks do not contain fossils.

3. Sedimentary rocks are classified according to their age and igneous rocks are sub-divided on the basis of mineral composition.

Which of the above statements is/are correct?

1 and 3 only

2 only

2 and 3 only

1.2 and 3

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Explanation:

First statement is incorrect as

Crystalline rock, any rock composed entirely of crystallized minerals without glassy matter. Intrusive igneous rocks—those that congeal at depth—are virtually always crystalline, whereas extrusive igneous rocks, or volcanic rocks, may be partly to entirely glassy.

Sedimentary rocks are both crystalline and non-crystalline.

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