Question

can dna be viewed by the naked eye?
the thickness of dna is about 3 × 10-9 meter. the
thickness of the smallest thing visible to the naked
eye is 1 × 10-4 meter.
3 × 10-9 m
1 × 10-4 m
yes
no

Explanation:

Step1: Compare the two values

We need to compare the thickness of DNA ($3\times10^{-9}$ m) with the smallest thing visible to the naked eye ($1\times10^{-4}$ m).
Since $3\times10^{-9}<1\times10^{-4}$ (because when comparing numbers in scientific notation with the same base (10), the number with the smaller exponent is smaller when the coefficient is positive).

Answer:

NO