Environment & Ecology question from JKAS Prelims, 2021 by JKPSC
What is ‘Biochar"?
Last updated Jun 24, 2026
Correct Answer:
Option C —
A form of charcoal produced from heating organic matter
Biochar is a fine-grained, carbon-rich porous substance produced through a process called pyrolysis. It is highly stable and can persist in soils for hundreds or even thousands of years.Key Characteristics and BenefitsProduction: It is created by heating biomass (such as agricultural waste, wood chips, or manure) in a low-oxygen or oxygen-free environment.Carbon Sequestration: Unlike common charcoal, which is used for fuel, biochar is primarily used as a soil amendment. It helps mitigate climate change by "locking" carbon into the soil that would otherwise be released as $CO_2$ during decomposition.Soil Fertility: Its porous structure acts like a sponge, helping the soil retain water and nutrients. It also provides a habitat for beneficial soil microorganisms.Waste Management: It provides a productive way to manage agricultural and forestry waste, preventing it from being burned in the open.
Answer verified by Quintessence Classes faculty — Karan Nagar, Srinagar.