Sort the sentences based on whether they describe the properties of a heterogeneous or a homogeneous mixture. the choices are: its components are visible. it may be mistaken for a pure substance. it can be separated using distillation. concrete is an example of this kind of mixture.

the "dirty dozen" chemicals banned in an international treaty are formally known as persistent organic pollutants, or pops. the united nations environment program provided this background on what they are and what they can do to humans and wildlife.

i hope this

i believe it would be c: tons.