Question

Which change to the experimental design would improve the reliability of the engineers' measurements?
ОА.
using a liquid other than water to determine porosity
ОВ.
using flasks instead of beakers
OC
testing single samples from more than three locations
OD
testing more samples from each location

Answer 1

Answer:

c

Explanation:

sorry if im wrong my apolgies but i think c cus thats the only one that says equal amounts of something

like to test a drop of each so its balanced