The correct option is Only three pairs
Explanation
Resources are broadly classified into natural, human-made, and human resources. Natural resources are further categorized into renewable and non-renewable resources based on their exhaustibility and rate of replenishment.- Pair 1 is correctly matched: Renewable resources are those that get renewed or replenished quickly. Some of these are unlimited and are not significantly affected by human activities, such as solar and wind energy. Others, like water, soil, and forest, can be affected by careless use.
- Pair 2 is correctly matched: Non-renewable resources are those which have a limited stock. Once the stocks are exhausted, it may take thousands of years to be renewed or replenished. Since this period is much longer than human life spans, they are considered non-renewable (e.g., Coal, Petroleum, Natural Gas).
- Pair 3 is correctly matched: Human-made resources are created when humans use natural substances and change their original form to make them useful. For example, iron ore is not a resource until people learn to extract iron from it. Technology, buildings, and bridges are examples of human-made resources.
- Pair 4 is incorrectly matched: Human Resources refers to the number (quantity) and abilities (mental and physical) of the people. It emphasizes that humans are the ultimate resource because their skills turn nature into useful materials. It does not refer to the physical terrain or climate.
Key Takeaway: Resources are classified by their source and renewability: Renewable (quick replenishment), Non-renewable (limited stock), Human-made (processed by technology), and Human (people and their skills).