In this chapter, Bhoomi and Surya explore nature's treasures as their grandmother explains the importance of natural resources like air, water, and sunlight, and their essential roles in sustaining life.
In this chapter, we accompany Bhoomi and Surya as they visit their grandmother, Ajji, who lives in a serene village near the Western Ghats. The chapter highlights the various natural resources that support life on Earth, thereby introducing the concept of ‘Nature’s Treasures’. Ajji illuminates how these treasures enrich our lives, emphasizing that air, water, and sunlight are indispensable for sustainable living.
Air is mentioned as a critical resource for survival. It is primarily composed of nitrogen (78%), oxygen (21%), and a small percentage of other gases. Ajji explains its role in breathing, where oxygen is vital for the body’s functions. Breathing exercises introduced in the chapter allow Bhoomi and Surya to appreciate the importance of fresh air. When they hold their breath, they realize how quickly they need oxygen, emphasizing that humans can survive only minutes without it.
Ajji teaches Bhoomi and Surya about the significance of water, detailing its various uses like drinking, sanitation, agriculture, and industrial applications. Interestingly, while water covers about two-thirds of the Earth’s surface, only a fraction is freshwater, suitable for human use. Ajji instills a sense of responsibility regarding water usage, advocating for techniques like rainwater harvesting to conserve this essential resource.
The chapter nudges us to assess our daily activities to identify potential sources of water wastage and suggests practical solutions for minimizing wastage. Examples include turning off taps when not in use and fixing leaks.
Bhoomi and Surya learn about the sun’s energy, which is crucial for life on Earth. Ajji explains that all plants depend on sunlight for photosynthesis, which makes it the primary energy source for life. In addition, the chapter covers how solar panels are utilized to transform sunlight into electricity and its several applications such as solar cookers and solar water heaters.
The narrative takes Bhoomi and Surya into the forests, revealing the rich variety of flora and fauna. Forests are natural habitats for wildlife and also play critical ecological roles, like preventing soil erosion and maintaining biodiversity. The decline of forest areas due to human activities brings attention to the necessity of conservation efforts. The chapter mentions the Chipko Movement as a historical example of such conservation efforts led by women protecting trees from deforestation.
After their forest walk, Bhoomi and Surya delve into the significance of soil, noting the types of soil and their compositions. Soil is essential for plant growth, and the presence of earthworms indicated a healthy soil ecosystem. The chapter discusses various rocks and minerals, highlighting their uses while stressing their slow formation rate—up to thousands of years. Therefore, it is essential to utilize them judiciously.
The chapter touches on fossil fuels, including coal, oil, and natural gas, and illustrates their non-renewable nature. As fossil fuels deplete slowly, alternative energy sources gain emphasis. They illustrate that continued reliance on fossil fuels significantly contributes to air pollution. The text emphasizes the importance of conservation efforts like reducing fossil fuel use and devising alternative energy solutions to mitigate environmental damage.
Natural resources fall into two categories:
The chapter concludes with the profound statement by M. K. Gandhi, “Earth provides enough to satisfy every man’s need but not for every man’s greed.” This reflection serves as a reminder of the importance of conserving natural resources and using them judiciously to maintain the delicate balance of our ecosystem for future generations.
In summary, this chapter urges readers to recognize the bounty of nature’s resources, their importance for survival, and the responsibility we bear in protecting them to ensure a sustainable future.