Types of resources (class 8)
Answers
natural resource & man made resource
Answer:
• Types of resource:
Resources are generally classified into natural, human and human made resources.
• Natural resources: Resources that are drawn from nature and ised without much modification are called natural resources.
- Natural resources are classified into different groups depending upon their level of development, use, origin,stock and distribution.
• On the basis of their development and use resources can be classified into two groups, actual and potential resources.
- Actual resources are those resources who quantity is known.
- Potential resources are those whose entire quantity may not known and these are not being used at present time. These resources could be use in the future.
•Based on their origin, Resources can be abiotic or biotic.
- Abiotic resources are non living and biotic resources are living.
•Natural resources can be broadly categorised into renewable and non renewable resources.
- Renewable resources are those which get renewed or replenished quickly. Some of these are unlimited and are not affected by human activities.
- Non renewable resources are those which have a limit Stock. Once the sticks are exhausted it may take thousands of years to be renewed or replenished.
• On the basis of their distribution resources can be ubiquitous and localised.
- Resources that are found everywhere are ubiquitous. But those who are found only in certain places are localised.
• Using resources carefully and giving them time to get renewed is called resource conservation. Balancing the need to use resources and also conserve them for the future is called sustainable development.
•Sometimes, natural substances become resources on when their original form has been changed. Iron ore was not a resource until people learnt to extract iron from it. People use natural resources to make buildings, bridges,roads etc, which are known as human made resources.