alleryWhat natural manure helps maintain soil fertility in ecological farms?
AAnimal and green manure
BSynthetic nitrogen dust
CPowdered mined sulfur
DPulverized rock salt
Answer & Solution
Correct answer: A. Animal and green manure
Animal and green manure improve and maintain long-term soil fertility.
Keep practising Sustainable Agriculture, Forestry & Future
Browse all Sustainable Agriculture, Forestry & Future questions for ICSE Class 10, or explore more Environmental Science topics.
Related questions
Match resource rule:
1. Renew: p. Clean
2. Fossil: q. Carbon
3. Future: r. NeedsMatch pact rule:
1. Art 2: p. Temp
2. Art 3: q. NDCs
3. Art 14: r. ReviewMatch carbon cost:
1. Marginal: p. Cost
2. Equiv: q. CO2-eq
3. Market: r. TradeMatch indoor air:
1. VOC: p. Low toxin
2. Vent: q. Air flow
3. Glass: r. DaylightMatch NDC nature:
1. Plan: p. NDCs
2. Nation: q. Own goal
3. Article: r. Art 3Match JI gases:
1. CH4: p. Methane
2. N2O: q. Nitrous
3. HFC: r. FluorineMatch sustain tier:
1. Ecology: p. Nature
2. Social: q. Equity
3. Economy: r. ViableMatch life cycle:
1. LCA: p. Impact
2. Cradle: q. Grave
3. Scope: r. Embodied