HORTICULTURE

Detailed explanation-1: -Callie is propagating her African violet by taking leaf cuttings. She is confident that leaf cuttings will work because she is using: herbaceous plants.

Detailed explanation-2: -Mixtures of peat moss and vermiculite or perlite also provide an effective medium for germinating seeds. Applying a thin layer of these materials over a layer of more fertile soil provides a seed bed that provides quick and effective germination with a fertile growing medium for the roots of the emerging plants.