1 Fermi is equal to:

1. 10^-14 m
2. 10^-10 m
3. 10¹⁵ m
4. 10^-15 m

The unit of time is:

1. light year
2. parsec
3. leap year
4. angstrom

One metric tonne is equal to :

1. 10 quintal
2. 100 quintal
3. 1000 quintal
4. 25 quintal

Light-year is the unit of:

1. Time
2. Length
3. Mass
4. none of these