Differentiate hydroponics from aquaponics:
Answer variants:
This method was demonstrated by a German Botanist Julius Von Sachs in 1980.
In this method the roots of the plants hang in the air and are misted with nutrient solution.
This method prevents the usage of fertilizers as in this method, and the fishes provide rich nutrients for the plants.
1. Hydroponics:
2. Aquaponics: