human skin has a thickness of about 5×10⁻³ meter. a grain of sand has a thickness of about 1×10⁻³ meter…

human skin has a thickness of about 5×10⁻³ meter. a grain of sand has a thickness of about 1×10⁻³ meter. which is thicker, human skin or a grain of sand? human skin 5×10⁻³ m grains of sand 1×10⁻³ m
Answer
Answer:
Human skin
Explanation:
Step1: Compare the coefficients
We have $5\times 10^{-3}$ for human - skin and $1\times 10^{-3}$ for sand. The exponents of 10 are the same ($- 3$), so we compare the coefficients 5 and 1. Since $5>1$, we have $5\times 10^{-3}>1\times 10^{-3}$. So human skin is thicker.