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A ______ is one billionth of a metre.

  1. A
    parsec
  2. B
    micrometre
  3. C
    angstrom
  4. D
    nanometre

Solution & Step-by-step Explanation

A nanometre is equal to one billionth of a metre, expressed in scientific notation as 1nm=10
−9
m.

Micrometre =10
−6
m

Angstrom =10
−10
m

Parsec =3.08×10
16
m

Practice this question

Try it yourself before checking the explanation above.

A ______ is one billionth of a metre.
A
parsec
B
micrometre
C
angstrom
D
nanometre

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