Which of the following would be a reasonable estimate for the weight of a pencil? a. 1 × 10^-20 lb b. 1 × 10^20 lb c. 1 × 10^2 lb d. 1 × 10^-2 lb

D

Step-by-step explanation:

Let's start by ruling out answers. B and C are way too much, as C is the weight of a teenager, and B is WAY too heavy to even comprehend.

Because 10^20 or 10^-20 are very small amounts, we can also rule A out to get that the answer is D.

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