This lesson explores and clarifies the concept to furnish a basic idea about renewable or non-renewable energy. The chapter adequately explains the types of fuels used as a reservoir of energy and how these are useful in our day-to-day life. The chapter, "Coal And Petroleum", is centred more on the different characteristics of fuels present in a limited quantity which are considered an exhaustible natural resource. Thus, the students learn about the limited resources existing in our environment and preserve them from depletion for the upcoming generation.
The chapter focuses on the fuels, which commonly include:
The chapter primarily comprises the formation of coal through the process named carbonisation. This text provides essential information on types of coals, their products, and their application in metal extraction, operating light, and heavy vehicles. The lesson further highlights the key point of energy preservation and conservation for the upcoming generation in the future. The primary goal of this lesson is to focus on coal and its product along with its application used in everyday life.
Another vital piece of information provided to students is the introduction of petroleum and its products. Students get to learn about the preventive ways to prevent these natural resources. The lesson introduces students to some future applications of CNG and the positive effect on the atmosphere. The utilisation and impact on human health are well explained in a detailed manner.
It further delves deeper to describe the places in India, which are rich sources of these fuels and are prime locations for the extraction of coal and petroleum. Students also learn the advantage of using natural gas, LPG, and CNG gases neglecting detrimental effects to our atmosphere. Finally, the chapter teaches the student about various policies or programs developed to preserve these resources to not get depleted.