Q13: What is the importance of resource planning for India? Explain with examples.
Q14: What problems do arise because of indiscriminate use of resources?
Q15: Define the following terms:
a) Gully Erosion b) Leaching c) Fallow Land d) sheet erosion e) Contour Ploughing.
Answers
Answer:
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Q13. Resource planning refers to the strategy for plant and judicious utilisation of resources. it is essential for India as there is enormous diversity in the availability of resources.
example:- cold desert of lading has rich cultural heritage but is deficient in water and some strategic material.
Q14. Major problems caused by indiscriminate/excessive use of resources:
⏺️ Depletion of resources for satisfying the greed of few individuals.
⏺️ Accumulation of resources in few hands divides the society into two segments i.e. haves and have nots or rich and poor.
⏺️ Indiscriminate exploitation of resources has led to global ecological crises , such as global warming, ozone layer depletion, environmental pollution and land degradation.
Q15. a) Gully erosion is the removal of soil along drainage lines by surface water runoff. Once started, gullies will continue to move by headward erosion or by slumping of the side walls unless steps are taken to stabilise the disturbance.
b) Leaching is the process of a solute becoming detached or extracted from its carrier substance by way of a solvent. Leaching is a naturally occurring process which scientists have adapted for a variety of applications with a variety of methods
c). Fallow Land is farmland that has no crops on it, usually for a year, to recover its fertility to grow crops.
d) Sheet erosion or sheet wash is the even erosion of substrate along a wide area. Sheet erosion occur in wide range of settings such as coastal plains, hillslopes, floodplains and beaches. Water moving fairly uniformly with a similar thickness over a surface is called sheet flow and is the cause of sheet erosion.
e). Contour bunding or contour farming or Contour ploughing is the farming practice of plowing and/or planting across a slope following its elevation contour lines.