Resources are vital for human survival as well as for maintaining the quality of life. It was believed that resources are free gifts of nature As a result, human beings used them indiscriminately and this has led to the following major problems.

• Depletion of resources for satisfying the greed of a few individuals.
• Accumulation of resources in few hands, which, in turn, divided the society into two segments i.e. haves and have nots or rich
• Indiscriminate exploitation of resources has led to global ecological crises such as, global warming, ozone layer depletion, environmental pollution and land degradation.