Question

He process of filtration was used to separate a sample into its components. What conclusion about the sample can be formed based on the technique used?
It was a pure substance.
It was a compound.
It was a heterogeneous mixture.
It was a homogeneous mixture

Answer 1

The answer is heterogeneous mixture please rate me breinliest

Answer 2

It was a heterogeneous mixture.

for example sea water is a heterogeneous mixtures: water, sand, plancton, salts etc