What are the building blocks of all matter including solids, liquids, and gasses

The answer is Atoms

Explanation:

Matter is composed of small particles called atoms, which is the smallest particle of matter and contains the properties of a chemical element. Atoms are made up of other smaller particles called subatomic particles (protons, neutrons and electrons). Atoms join together to form molecules, which in turn form matter in different states (solid, liquid, gas).

what is the question because that is not a question.

.) the observation by semmelweis that more mothers died of childbed fever when their doctors also worked in the morgue