Sustainable Development And Conservation

In the context of resource management and environmental economics, the term Carrying capacity is critical. It implies two main factors:

• Sustainable Resource Extraction: Resources must be extracted at a rate that does not exceed their natural rate of regeneration. This ensures that resources remain available for future generations without depleting or degrading the natural stock.
• Waste Management: The amount of waste produced must remain within the environment's ability to assimilate and process it without causing damage or loss of functionality to ecosystems. This prevents pollution levels from exceeding the natural capacity to absorb or neutralize pollutants, preserving environmental health.

Thus, carrying capacity ensures a balance between consumption and environmental sustainability, maintaining ecological equilibrium.

To solve the problem of arranging the sources of electricity generation in India in the correct sequence from higher to lower based on total power generation capacity, we need to understand each source's contribution. India's primary sources are:

1. Thermal: This includes coal, gas, and oil-based power, which are predominant due to their established infrastructure and resource availability. Thus, thermal power typically has the highest capacity in India.
2. Hydro: This is a renewable source with significant capacity, tapping into the country's many large rivers.
3. New and Renewable Energy: This includes wind, solar, and other renewable sources. While growing rapidly, it still generally falls behind thermal and hydro in terms of capacity.
4. Nuclear: This represents a smaller portion of India's power generation due to the limited number of facilities and high setup costs.

Based on the above analysis, the correct sequence from higher to lower capacity is Thermal, Hydro, New and Renewable Energy, and Nuclear.

Therefore, the correct answer is: (B), (D), (C), (A)