Answer:
B) rock salt
Explanation:
<u>Rock Salt is the composition of primarily the compound sodium chloride . Rock salt is the chemical sedimentary rock , which is composed by the process of evaporation of the ocean water .</u>
But ,
Chert , Agate and Flint , are the different varieties of silicon dioxide .
Hence , from the given options , the Rock salt is the option that does not fit the pattern .
10+(30)+744
40+744
Answer: 784
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