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Short Answer Questions :
1. What is a resource?
2. What are the different bases or
8. What are the four types of valu
Define technology.
What are the main characteris
Answers
Classification of natural resources on the basis of their exhaustibility:
Renewable Resource: Resources which can be quickly replenished are called renewable resources, e.g. wind energy, hydel energy, solar energy, etc.
Non-renewable Resource: Resources which cannot be replenished in the near future are called non-renewable resources, e.g. coal and petroleum. It takes millions of years for the formation of coal and petroleum and hence they cannot be replenished in our lifetime.
Classification of natural resources on the basis of distribution:
Ubiquitous Resource: Resources which are available everywhere on the earth are called ubiquitous resources, e.g. air and water.
Localised Resource: Resources which are available at select locations on the earth are called localized resources, e.g. coal mines in Jharkhand. Topography, climate and altitude are the major factors which affect the distribution of natural resources.
Human Made Resources
When a natural resource undergoes drastic change by human intervention, it becomes human-made resource. For example; iron ore is processed to make steel and hence steel is a man-made resource. Buildings, bridges, railways, machines, etc. are examples of human-made resources. Technology is also a human-made resource.
Human Resources
People are the human resources. Education and health improve the quality of human resources. Improving the quality of people’s skills to enable them to create more resources is called human resource development.
CONSERVING RESOURCES
Most of the natural resources are limited in stock. Even some of the renewable resources can become scarce if they are not used judiciously. We are already facing shortage of water at many places because of excessive exploitation of water. Scientists predict that coal and petroleum are going to be exhausted in the near future. Hence, it is important to conserve the natural resources. Conservation not only secures our life but also the life of future generations. Making a balance between our need and conservation of resources is called sustainable development. We should follow the three Rs of conservation for sustainable development.
Reduce: We should reduce consumption.
Reuse: We should reuse as many items as possible.
Recycle: We should recycle discarded items wherever possible.