Which of the following is the
correct way to express
0.0000321 in scientific
notation?

Which of the following is not a good technique for managing used oil? a) have specific, labeled catch pans available for technicians who are collecting oil b) spills in your shop and any releases on pavement or outside should be poured down a drain c) do not use oil containers for antifreeze or other non-similar fluids d) be prepared for oil spills with the proper absorbents

Which metal exist in liquid state and can be cut with knife ?

The excretory system,need answers for all: )