Answer:
OD - is an explanation for a set of events
Step-by-step explanation:
A scientific theory is an explanation or model that describes a set of observations or events in a systematic way and offers explanations for how and why those events occur. It is a well-substantiated explanation that is based on empirical evidence, observations, and experimentation.
A scientific theory is not simply an educated guess or a conjecture, but a well-tested and supported explanation for a set of observations. It is subject to revision and improvement over time, as new evidence emerges or new hypotheses are developed. Therefore, a scientific theory is not a fixed, unchanging statement of fact, but rather a dynamic, evolving understanding of how the natural world works.