Answer:
They move outwards.
They don't intersect each other at any point.
They show the electric field.
Explanation:
<span>In order best to find out whether the obtained experimental results are worth mor etime and resources the group of scientists should present their results (could be done also in poster session) to other scientists in order to hear their opinion and get a feedback. The shoudl also ask another researchers to redo the experiments and to compare the results. </span>
So the result is not biased or affected in some way
Radiometric dating?
Also, possibly radiocarbon dating