Question

Name the three convenient units used to measure length ranging from very short to very long value. How are they related to the S.I. unit?

Answer 1

1. nanometre: a unit for measuring length in the metric system. There are one billion (=one thousand million) nanometres in a metre.
2. centimetre: a unit for measuring length in the metric system. There are 100 centimetres in one metre.
3. gigametre: a unit for measuring length in the metric system. There are 1 million meter in one gigametre.