Pure substances: table salt, sugar, absolute alcohol
Mixtures: vinegar, cooking oil, milk
Potassium nitrate is a pure compound (substance), but when it is mixed with sulphur and charcoal, it becomes black powder (gunpowder), a mixture.
Some examples of pure speech are protests, assemblies, demonstrations, etc.
Pure substances are made up of a single element, or a single compound. Table salt is a pure substance because it is made up of only the compound NaCl (sodium chloride). Diamond is a pure substance, it is made up of the element carbon. Air is not a pure substance, it is a mixture of several gaseous elements and compounds (nitrogen, oxygen, carbon dioxide..) Distilled water is a pure substance made up of a single compound H2O.
some examples of non print media are ...
The way I like to think about it, homogeneous solutions are those where individual particles can't be picked out. For instance, salt water and fruit juices (without pulp) are homogeneous solutions. Things like salsa on the other hand are not, because you can see that it's a mixture. These are called heterogeneous mixtures.
Unless it's space, it will reflect some light. This is because there is no man made shade of black that absorbs 100% of all light shone on it. Some natural examples of true black is pure carbon and space.