Multiple choice

Hydroponics deals with

  1. desalting water

  2. growing plants in water

  3. controlling pollution of streams

  4. migration of aquatic animals
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Hydroponics is a cultivation method where plants grow in nutrient-rich water solutions instead of soil. The term is derived from 'hydro' (water) and 'ponos' (labor). It allows precise control over nutrients and is used in commercial greenhouses.

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