It’s a type of Nucleotide
Sedimentary rocks are formed from pre-existing rocks or pieces of once-living organisms. They form from deposits that accumulate on the Earth's surface.
The word being referred to above is the word intensity. Thus, the answer is letter B. The word also refers to the degree or amount of strength or force that an object has. Some of its synonyms are the words saturation, potency, force, power, etc.
