A scientist may repeat an experiment to make sure that results are reliable. An example would be if the test had a large variance in data gathered and no conclusions could be drawn.
A change in color, odor, or texture
(Also rust)
Answer:
Tides . hope this helps
Explanation:
the tidal force causes earth and its water to bulge out on the side closest to the moon
Both Bromine isotopes<span> are used in nuclear medicine. </span>Br<span>-81 is used for the production of the radioisotope Kr-81m.</span>