+6
I’m not 100% sure but let me know
The answer to this question should be 3. <span>adding research resources during an investigation
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The answer 1 and 2 are similar. Discovering a new variable mean that you wouldn't control it at the beginning of the research. It would be too late if you try to control it. Incorrect measurement definitely will cause an error.
Answer:Adversity is a great tool of change.
Explanation:
Adversity leads to growth and change. It makes you think rightly ,manage situations and make decisions that can bring about change. Adversity can also cause positive change in attitude and behaviour towards .individuals,friends and family.
Explanation:
It is necessary that the glassware which we use during titration needs to be clean and dry before use because otherwise the remaining reagents will get mixed up with the solutions.
As a result, this will lead to a change in analysis results.
Hence, an error will occur in the resulting values.
Also, when not cleaned properly the any other substance remaining in the glassware might react with the solution leading to a change in the solution.
In that case also, error will occur.