Rocks (in general) are neither a single compound, or an element. They are a mixture of compounds.
"compound"
Oxygen is an element
Lead (Pb) is a chemical element.
It's a mixure
"compound"
Juices are complex heterogeneous mixtures.
A compound.
No, it is an element.
yes is a mixure with compound
yes is a mixure with compound
its is a mixture
yes is a mixure with compound