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15 October, 20:08

All of the following are possible source of error in a scientific investigation except for?

A) Discovering new variables as the experiment proceeds

B) Not controlling all the variables in a experiment

C) Adding research resources during an investigation

D) Measuring the materials of an experiment incorrectly

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Answers (1)
  1. 15 October, 20:25
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    It should be either A or C
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