Ahypothesis concerned with a specific phenomenon is found to be acceptable through many experiments over a long period of time. this hypothesis usually becomes known as a

Theory

Explanation:

A proved hypothesis usually becomes known as a theory.

Let's take an example. Remember the experiment for the Newton's law of universal gravitation. In an experiment like this, we should have a reference point, a hypothesis. The thought process would be, for example, to intuitively propose that the force of gravity depends on the masses of the two objects and the distance between them.

As a second step, sufficiently high number of experiments should be performed to prove this relationship with different masses and different distances to see how force correlates with the given variables.

Having noticed that the two masses are directly proportional to force and that force is inversely proportional to the square of a distance between the two objects, a proportionality constant is also found, so then we have an equation which would help us solve for the force of gravity between any two objects knowing their masses and the distance between them.

Overtime, after this hypothesis is proved analyzing substantial data, it becomes an accepted theory that can be used and applied.

1. a)c-14 has two more protons

2. d)they have different numbers of protons, neutrons, and valence electrons; they are all gases at room temperature.

3. c) iron and nickel.

answer seismograph;