Question

Of the following the only process not involed in the making of clastic rocks is:
A. sediment lithification
B. build up of plant materials
C. sediment depostion
D. sediment transport

Answer 1

The answer is B. build up of plant materials. This is because those rocks that are composed of materials, which are organic matters from decaying plants, formed by biological activity are called biogenic or organic or non-clastic rocks. On the other hand, clastic rocks are made up of gravel, sand, silt, and clay.

Answer 2

Answer: the build-up of plant materials.

Explanation:

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