Statements regarding why and how facts relate to each other and the connection between those facts are known as

theories

Explanation:

Theory: The term theory is defined as a group of different interlinked ideas which are being intended to describe something. It aims at providing a specific framework for the process of explaining particular observations. The process which is involved in theory to explain things is generally based on the idea of assumptions. These assumptions are then followed by a specific number of possibly occurring hypotheses. Furthermore, these hypotheses can be tested in response to provide significance for or challenge the theory.

a photo collage of women at work during world war 2