8. what is a landfill?

a place where metals are recycled
a place where wildlife is protected
a place where trash is collected
a place where wetlands are developed

A landfill is a place where trash is collected

What is the question? if you were looking to design a method of separating something, you can separate this compound by putting both in water and allowing the water to dissolve the sugar. then pour it into another beaker and evaporate it then boom! salt and sugar : ) 

The basic building blocks of dna and rna are nucleotides