The invisible primary.
I hope this helps, please Brainliest me, and have a great night! :D
Pangaea or Pangea was a supercontinent that existed during the late Paleozoic and early Mesozoic eras. it assembled from earlier continental units approximately 300 million years ago and it began to break apart about 175million years ago.
Answer: Meta analysis.
Explanation: Dr. Robert's would find a meta analysis most appropriate for his needs. Meta analysis can be used when there are multiple scientific studies aimed at addressing or solving a particular problem. Results of meta analysis seems to be more precise than outcomes of individual studies conducted to solve similar problem, due to the fact that meta analysis employs statistical techniques to derive an output or result based on the weighted average or mean of each individual study, hence reducing the statistical error and improving precision. Meta analysis are often more tedious as they may require multiple data from different sources thus yielding a complex analysis.
<span>is an area of a lake or river where pollutants from a point source discharge are mixed</span>
Ok what is it so I can help I think