No, it is homogeneous.
Acid rain is not homogeneous after my opinion.
No, nitric acid is not a heterogeneous mixture. It is a clear, colorless liquid that is a pure substance composed of nitric acid molecules.
Rice grits is homogeneous, corn grits is homogeneous, rice and corn grits mixed is heterogeneous.
If the rain water contain powdered materials the mixture is nonhomogeneous.
Vinegar is a homogeneous mixture of water and acetic acid.
Heterogenous
heterogeneous
peach is heterogeneous or homogeneous?
H2SO4 is sulfuric acid, which is a pure substance called a compound, which by definition is homogeneous matter, but is not a mixture, unless you dilute it with water, in which case it would be an aqueous solution of sulfuric acid, and would be a homogeneous mixture in that case.
Mixtures can be homogeneous but also heterogeneous.
If it's got pulp in it, it would be heterogeneous -- otherwise, it is homogeneous.