NEET Biology question
Not in NEET syllabus
Which of the following statements is/are not correct with reference to hydroponics? I. It determines the mineral nutrients essential for plants II. Hydroponics involves culturing plants in soil with a defined mineral solution III. Hydroponics requires purified water with non-defined mineral nutrient salts IV. In the hydroponics technique, plants are grown in sandy soil with a nutrient solution V. By this method, essential elements required for plant growth can be identified and their deficiency symptoms discovered
Solution
Hydroponics is defined as growing plants in a soil-free, defined mineral nutrient solution using purified water and precisely defined mineral salts — directly contradicting statement III, which wrongly claims the salts used
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