Answer:
Scientific theories attempt to explain why certain events occur in the natural world.
Step-by-step explanation:
A scientific theory is a set of concepts, abstractions of observable phenomena and quantifiable properties. It includes scientific laws, which express the relationships between the observations of the concepts and is verified in accordance with the scientific method.
Scientific theory is the most rigorous and complete form of knowledge. This definition is very different from the common use of the word "theory", which refers to something without support or an assumption.