What is the use of biochar in farming ? 1. Biochar can be used as.a part of the growing medium in vertical farming. 2. When biochar is a part of the growing medium, it promotes the growth of nitrogen-fixing microorganisms. 3. When biochar is a part of the growing medium, it enables the growing medium to retain water for longer time. Which of the statements given above is/are correct ?
Options
(a)1 and 2 only
(b)2 only
(c)1 and 3 only
(d)1, 2 and 3
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