The no. of seconds in a year = ${{10}^{7}}$ second, the no. of microseconds in a second = ${{10}^{6}}$ . So no. of seconds in a year is bigger than microseconds in a second
The no. of seconds in a year = ${{10}^{7}}$ second, the no. of microseconds in a second = ${{10}^{6}}$ . So no. of seconds in a year is bigger than microseconds in a second