Which best describes the purpose of a control sample?

a to have more quantitative data to analyze at the end of the experiment

b to have more qualitative data to analyze at the end of the experiment

c to compare its results to those of a well-known scientist

d to compare its results to those with the experimental sample

( D). to compare its results to those with the experimental sample is the correct answer.

Explanation:

The purpose of a control sample is to compare its results to those with the experimental sample.

control sample composition of the material is known that is examined with test samples to get the accurate result.

A control sample is used in the experimental procedure.

It is used to find the accuracy of an analytical experiment and it also remove the inaccuracy from the result which occur while performing the experiment in the laboratory.

good for her? ? where is the question?

i think it's 35 meters