EVERYDAY SCIENCE

Detailed explanation-1: -The United States has more coal than the rest of the world has oil. There is still enough coal underground in this country to provide energy for the next 250 years or more. But coal is not a perfect fuel. Trapped inside coal are traces of impurities like sulfur and nitrogen.

Detailed explanation-2: -After the plants died, they were buried under water and soil over hundreds of millions of years. The heat and pressure over the course of that time forced out oxygen and what was left were rich carbon deposits. These carbon deposits in time formed into the coal we mine today all over the world.

Detailed explanation-3: -Coal is the most important and abundant fossil fuel in India. It accounts for 55% of the country’s energy need. The country’s industrial heritage was built upon indigenous coal. Commercial primary energy consumption in India has grown by about 700% in the last four decades.

Detailed explanation-4: -According to the National Academies of Sciences, 81 percent of the total energy used in the United States comes from coal, oil, and natural gas. This is the energy that is used to heat and provide electricity to homes and businesses and to run cars and factories.

Detailed explanation-5: -India is largely dependent on coal for fulfilling its retail energy provisions. Hence, most abundantly available fossil fuel is coal. Thus, option (C) is correct.