Which of the following statements about the froth flotation process is correct?
It is an exothermic process.
It is a zero-waste process with no environmental impact.
It is not used in the concentration of metallic ores.
It can recover particles of all sizes effectively.
Froth flotation can effectively recover particles of all sizes, from coarse to fine. However, it is not an exothermic process and may have environmental impacts if not managed properly.