$\text{a)}1ml={10}^{-3}l$

$\text{b)}1nm={10}^{-9}m$

 

$\text{c)}1pg={10}^{-12}g$

 

$\text{d)}1m={10}^{9}nm$

$1m={10}^{2}cm$

$1cm={10}^{7}nm$

 

$\text{e)}1s={10}^{12}ps$

 

$\text{f)}1l={10}^{3}ml$

$1l={10}^{-2}hl$

$1hl={10}^{5}ml$