Ascientist read about an experiment done by someone else. she does the same experiment in her lab to make sure it works.
this is an example of

The correct answer will be- repetition of the experiment to test the hypothesis

Explanation:

A scientific experiment is performed to test the hypothesis which checks whether the hypothesis is true or not true.

Testing the hypothesis is the key of the scientific investigation so the repetition of the experiments is done to check the validity of the hypothesis either by the same researcher who formulated the hypothesis or another researcher who check and verify the results.

Thus, the repetition of the experiment to test the hypothesis is the correct answer.

sry but any answer choices

most historians agree that gabriel mouton, the vicar of st. paul’s church in lyons, france, is the “founding father” of the metric system. he proposed a decimal system of measurement in 1670. mouton based it on the length of one minute of arc of a great circle of the earth (now called a nautical mile, 1852 meters). he also proposed the swing-length of a pendulum with a frequency of one beat per second as the unit of length (about 25 cm). a pendulum beating with this length would have been fairly easy to produce, thus facilitating the widespread distribution of uniform standards. over the years, his work was revised, improved, and extended by a number of french scientists.

the political sponsor of weights and measures reform in the french revolutionary national assembly was the bishop of autun, better known as talleyrand. under his auspices, the french academy appointed several committees to carry out the work of developing a usable system of weights and measures for france. one of the committees recommended a decimalized measurement system based upon a length equal to one ten-millionth of the length of a quadrant of the earth’s meridian (i.e., one ten-millionth of the distance between the equator and the north pole).