What test is used to compare soil samples using equal amounts of soil samples (a control and unknown) and placed in varying levels of liquids?

Atitration test
Bultraviolet test
Cdensity gradient tube test
Dcomparison microscope test

Verified Answer :

I think the correct answer would be theĀ density gradient tube test. This is used not only but also in other solid materials in order to determine the composition or the substances in the mixture. Hope this answers the question. Have a nice day.