Explanation: Rivers in India are not just geographical features but are integral to the socio-economic fabric of the country. They play a multifaceted role in the lives of people, providing essential resources and services that are crucial for daily life and economic activities.
1. **Portable Water**: Rivers are the primary source of fresh water for millions of people in India. They supply water for drinking, cooking, bathing, and other domestic uses. Additionally, river water is used for irrigation, which is vital for agriculture, the backbone of the Indian economy. The availability of clean and portable water from rivers is essential for maintaining public health and supporting agricultural productivity.
2. **Electricity Generation**: Rivers are harnessed to generate electricity through hydroelectric power plants. These plants convert the kinetic energy of flowing water into electrical energy, providing a clean and renewable source of power. Hydroelectric power is a significant contributor to India's energy mix, helping to meet the growing demand for electricity while reducing reliance on fossil fuels. The construction of dams and reservoirs for hydroelectric power also helps in flood control and water management.
3. **Cheap Transportation**: Rivers serve as natural waterways that facilitate the transportation of goods and people. River transport is less expensive than road or rail transport, making it an attractive option for moving heavy and bulky goods over long distances. Inland waterways, such as the Ganga and Brahmaputra rivers, are being developed to enhance the transportation network and reduce the burden on road and rail infrastructure.
The multipurpose nature of rivers underscores their importance in the Indian context. They are not just sources of water but also play a critical role in energy production and transportation. The interdependence of these functions highlights the need for sustainable management of river resources to ensure their continued availability and utility for future generations.
In conclusion, the correct answer is (D) All of the above, as rivers in India provide portable water, electricity, and cheap transportation, making them indispensable for the socio-economic development of the country. Understanding the multifaceted role of rivers is essential for appreciating their significance in the Indian context and for formulating policies that ensure their sustainable use.