Water is one of the essential items which a human need for its survival. Along with being a basic need, it also acts as a basic constituent for the ecosystem to survive. Ecosystem consists of people and the culture to which they belong. India has been accompanied by severe decline in per capita water availability during the past 50 years.  As we all know, India is an agrarian economy, which implies more requirement of water. Thus, excess demand of water accompanied by less supply of the same resulted in pressure on the groundwater level due to which over-exploitation of ground water was seen. Gujarat state falls in a water stressed zone of the country. Also, water availability and scarcity causes socio-economic disparity in the region. Poor literacy rate in water deficit area was noticed apart from that, concentration of industry and housing in the regions which did not have water problems, lead to development of that particular area only. In order to ensure a balanced development there is no other alternative but to transfer water from surplus area to scarce areas of the state.

Which of the following option depicts a non-conventional source of energy?

• Natural gas
• Coal
• Solar
• Wind

3 and 4

Renewable energy sources, often known as non-conventional energy, are sources that are renewed by natural processes on a continual basis. For example: wind energy, solar energy, ocean and tidal energy etc.