WBCS.LIVE practice question

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?

Solve this multiple-choice question and check the correct answer with its explanation below.