Beauty is in the eye of the beholder means beauty isn't one specific thing and you cannot say something is 100% beautiful because when someone might find beautiful, another person may hate.
So yes, a dark cave can be beautiful to someone as a river might be to another.
Answer:
correction i said volcanic lava sorry its ocean water
The answer is B. He interested in designing machines
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.