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What is the meaning of the unit prefix "pico" (symbol p) in the metric system? A. A factor of 10−9 (0.000000001) B. A factor of 10−12 (0.000000000001) C. A factor of 10−6 (0.000001) D. A factor of 10−15 (0.000000000000001)
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Answer

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Step 1
: Understand the question and the given options

The question asks for the meaning of the unit prefix "pico" in the metric system. We need to identify the factor that "pico" represents.

Step 2
: Recall the meaning of the unit prefix "pico"

The unit prefix "pico" represents a factor of 10$^{-12}$, which is equivalent to 0.000000000001 in decimal form.

Final Answer

The unit prefix "pico" (symbol p) in the metric system means a factor of 1$^{- 12}$ (0.000000000001).