The correct answer is a) Coal.
Thermal power plants in Kerala are primarily fueled by coal. Coal is a fossil fuel that is formed from the remains of ancient plants and animals that have been buried and subjected to heat and pressure over millions of years. It is a non-renewable resource, meaning that it cannot be replaced once it is used up.
Coal is a major source of energy in India, accounting for about 70% of the country’s electricity generation. The use of coal has a number of environmental impacts, including air pollution, water pollution, and greenhouse gas emissions.
In recent years, there has been a growing focus on reducing the use of coal and increasing the use of renewable energy sources. However, coal is likely to remain a major source of energy in India for many years to come.
The other options are incorrect because:
- Natural gas is a fossil fuel that is formed from the remains of ancient plants and animals that have been buried and subjected to heat and pressure over millions of years. It is a non-renewable resource, meaning that it cannot be replaced once it is used up. Natural gas is a cleaner-burning fuel than coal, but it is still a fossil fuel and its use contributes to climate change.
- Diesel is a fuel that is made from petroleum. It is a fossil fuel, meaning that it cannot be replaced once it is used up. Diesel is a major source of air pollution.
- Biomass is a renewable energy source that is made from organic materials, such as wood, agricultural waste, and animal manure. Biomass is a cleaner-burning fuel than coal or diesel, but it can still contribute to air pollution.