The significant figures in the number 0.00521 is : 3 Significant figures.
Meaning of significant figures
Significant figure can be defined as numbers within the number system that has value or gives value to a number list.
Significant figures are numbers that has a measure of value assigned to them as a reason of where they are placed.
In conclusion, the number above contains only three significant figures.
Learn more about significant figures: https://brainly.com/question/24491627
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