UPSC Civil Services Prelims 2020
Question 57 of 70Environment and Ecology
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.
A1 and 2 only
B2 only
C1 and 3 only
D1, 2 and 3
Correct Answer
The correct answer is hidden
Explanation
43 words hidden ... Biochar can also support beneficial microbial activity by creating favorable microhabitats, including conditions ... 39 words hidden