Explanation

Ans:

Hydroponics:

• Hydroponics is a sort of horticulture and a subset of hydroculture which entails growing flowers,
• typically vegetation, with out soil, by way of using mineral nutrient answers in an aqueous solvent. Terrestrial or aquatic flora might also grow with their roots uncovered to the nutritious liquid, or, further, the roots may be bodily supported via an inert medium inclusive of perlite, gravely or different substrates.
• not with standing inert media, roots can motive modifications of the rhizosphere pH and root exudates can have an effect on rhizosphere biology and physiological balance of the nutrient solution with the aid of secondary metabolites.