Apply Now Student Hub Feedback
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.

About this question

JKPSC JKAS 2021 Prelims

Details

Exam JKPSC
Recruitment JKAS
Stage Prelims
Year 2021
Subject Environment & Ecology
View all questions from this paper

More Environment & Ecology questions

From across UPSC, JKPSC, and JKSSB papers — same subject, different years.

Practice 1,596+ more PYQs interactively

Filter by subject, year, and exam in real time. Get instant feedback, detailed explanations, and track your progress.

Open practice portal