The name of a sedimentary rock is usually based on:
a) its history
b) its degree of lithification
c) its grain size
d) its thickness

C

Explanation:

The name of the rock is usually derived from the sediment grain size.

your answer would be c i got it right on the assingment

answer: the rock sample is a sedimentary rock.

explanation:

it is given that:

mass of rock sample, m = 2.7 g

volume of rock sample,

so, density of rock sample will be

since, the density of rock sample is . hence, the rock sample is a sedimentary rock, whose densities varies between .

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