Consider the following statements abut the sedimentary rocks 1 They are formed by the accumulation o...........

Geography Geomorphology

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Consider the following statements abut the sedimentary rocks:

1. They are formed by the accumulation of sediments.

2. They are occurs typically in layers.

3. They conatins fossils.

4. Limestone and Quartzite are examples of sedimentary rock.

Select the correct answer using the code given below:

1 2 and 3 only

2,3 and 4 only

1,3 and 4 only

All of the above

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Explanation:

Sedimentary rocks are formed at the earth's surface by the accumulation and cementation of fragments of earlier rocks, minerals, and organisms[8] or as chemical precipitates and organic growths in water (sedimentation). This process causes clastic sediments (pieces of rock) or organic particles (detritus) to settle and accumulate, or for minerals to chemically precipitate (evaporite) from a solution. The particulate matter then undergoes compaction and cementation at moderate temperatures and pressures (diagenesis).