1. Is gravity a theory or a hypothesis ? How do you know? A. Theory, because it has overwhelming evidence supporting it. B. Hypothesis , because it was an observation proposed by a scientist . C. Hypothesis , because it has been tested frequently . D. Theory , because it cannot be contested as it has been proven true. 2. A scientist claims that water 100 degrees Celsius. Repeated trials result in similar data every time. Other scientists can replicate the experiment with similar results and come to the same conclusion. What this an example of? A. a theory B. proof C. a prediction D. support