Compound
Both, it can also be placed under "rocks."
compound ;) good luck
Salad dressing is in the fat category...
The term, phylum, is a term used for classification categories into which organisms are placed. A phylum is a subcategory of a species.
yes
heterogeneous
The reason why some people put questions under categories that have nothing to do with the question could be because they made a genuine mistake or perhaps the question could have been placed under one of two categories and the person chose the less obvious one.
The rust is dissolved.
Producer, consumer, and decomposers
Distribution, service or production.
By using white vinegar we could remove rust from plastic.
chemical, pathogen, enzyme, hormone