Question

Difficulty: EasyMethods and Techniques of Environmental Conservation

Match each environmental conservation technique on the left with its primary management function on the right.

  • AfforestationPlanting trees in previously unforested areas to establish new forest cover and curb erosion.
  • TerracingConstructing flat step-like ledges across steep hillside slopes to slow down surface runoff water.
  • Contour PloughingPloughing fields horizontally along lines of equal elevation to hold rainwater and prevent topsoil loss.
  • RecyclingProcessing discarded waste products into new re-usable materials to minimize resource depletion.

Answer

Afforestation matches with planting trees in non-forested areas; Terracing matches with constructing flat step-like ledges on steep slopes; Contour Ploughing matches with ploughing along lines of equal elevation; Recycling matches with processing discarded waste into new reusable materials.
Each technique directly aligns with its specific ecological objective: Afforestation introduces tree cover to unforested land; Terracing reduces surface runoff velocity on steep hillsides through step-like structures; Contour ploughing creates horizontal water traps along elevation lines; Recycling reduces environmental degradation by turning waste back into raw usable resources.

Step-by-Step Solution

1
Identify biological conservation techniques
Afforestation is identified as establishing tree cover on unforested land.
Afforestation uses vegetation to improve soil retention and sequester carbon.
2
Identify physical/mechanical soil conservation techniques on slopes
Terracing cuts steps into steep slopes, while contour ploughing tills horizontally along elevation lines.
Both methods aim to break the speed of surface runoff, with terracing specifically modified for steep relief.
3
Identify waste management techniques
Recycling directly corresponds to re-processing discarded materials.
Recycling conserves non-renewable and renewable natural resources by reducing raw material extraction.

Key Concept

Classification and application of biological, physical, and waste management methods in environmental conservation.
Estimated Time:45s
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