What is the building block of nucleic acids

Nucleotides are the smaller parts of the nucleic acids

Explanation:

A nucleotide is the basic building block of nucleic acids. RNA and DNA are polymers made of long chains of nucleotides. A nucleotide consists of a sugar molecule (either ribose in RNA or deoxyribose in DNA) attached to a phosphate group and a nitrogen-containing base.

I found this on google because I am not the best at explaining things but I hope this helps :)

Washing hands is still the single most-effective way to prevent infections if done before and after preparing food or eating, caring for a sick person or treating a cut or wound.