Hydroponics is $............$

Hydroponics is a system of growing plants in

Which one of the following scientists used the nutrient culture solution in hydroponic cultures?

$I.$ The practice of growing plants in nutrient-enriched water without soil is called....
$II.$ The system of growing plants with their roots bathed in nutrient mist (a cloud of moisture in air) is called....
Complete the given statements ($I$ and $II$) with the correct pair of options given below.

Growing of plants in a nutrient solution on terrace or balcony is called

While producing hydroponic plants,which of the following metals is added along with $EDTA$?