It increases the mass of the of the filter paper
a mixture
Separation by density
Transpiration
Yes, that is why it is a mixture. It can be separated back out to the original components (although this is sometimes difficult).
The physical properties of substances can be used a a technique! :)
Panning.
The platypus is completely original. It is not a "mixture" of any other animal.
shape
A mixture of granulated (or powdered) solids.
homogeneous mixtures of a pure solid in the form of its crystals from solution are separated by the technique of crystallization.Read more: What_type_of_mixtures_are_separated_by_the_technique_of_crystallization
Evaporation
In a mixture each part keeps it own properties