Which of the following statements best describes scientific research?
a.) research typically uses one source.
b.) research typically uses a variety of sources.
c.) research is all done by doctors.
d.) research is all done in a laboratory.

The correct answer is (B) Research typically uses a variety of sources

A research is the sum total of all the sources available related to the research. This is done to make the result error free. Using a variety of sources will help the scientist to make the result more close to the predicted result. The reader rely on the the results obtained and printed on the research paper for their knowledge.

Hence, it is important for a researcher to use a variety of source for information.

a polymer is a chainlike molecule made up of small molecular units. these small molecular units are called monomers. monomers of polymer can be joined together either naturally or synthetically.