Hydroponics is best described as which method?
AGrowing plants in sterilised sand beds
BGrowing plants in a water nutrient solution
CGrowing plants under artificial red light
DGrowing plants in sealed carbon dioxide tents
Answer & Solution
Correct answer: B. Growing plants in a water nutrient solution
1. Hydroponics grows plants in a water nutrient solution instead of soil.
2. Researchers use it to study the effects of different nutrient combinations under strictly controlled conditions.
3. It has also developed into a way to grow flowers, vegetables and other crops in greenhouses.
4. Many lettuces and tomatoes sold in markets today have been grown this way.
_Source: OpenStax Biology (1st ed., CC BY 4.0), Ch 31 "Soil and Plant Nutrition", section 31.1 Nutritional Requirements of Plants_
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