Here are some suggested answers based on the TED Talk “A young scientist’s quest for clean water” by Deepika Kurup. Be sure to tailor the language and details to match your understanding and notes from the talk.
Question 1
Describe the water quality in India.
The water quality in India is significantly compromised with many sources of water being contaminated by pollutants such as sewage, industrial waste, and agricultural runoff. As a result, millions of people lack access to safe drinking water, leading to detrimental health impacts, especially among children. Waterborne diseases are prevalent, and the scarcity of clean water poses a major challenge to public health and well-being.
Question 2
How is the global water crisis affecting Earth?
The global water crisis affects Earth in various ways, including the depletion of freshwater resources, increased competition for water among various sectors, and the exacerbation of climate change. Regions that already experience water scarcity become more fragile, leading to conflicts, economic instability, and humanitarian crises. The crisis also impacts ecosystems, as the over-extraction of water from rivers and lakes disrupts habitats and threatens biodiversity.
Question 3
How did Deepika develop a cost-effective, eco-friendly way to purify water? Describe her goal and how she used SODIS and photocatalysis.
Deepika Kurup developed a cost-effective and eco-friendly method to purify water through the application of solar disinfection (SODIS) and photocatalysis. Her goal was to create a simple water purification system that could be accessible to communities lacking clean water. SODIS involves using sunlight to kill pathogens in water by placing it in clear plastic bottles. Photocatalysis, on the other hand, utilizes light to activate a catalyst (like titanium dioxide) that helps to break down contaminants in water. By combining these techniques, she aimed to create a sustainable solution for purifying water in resource-limited settings.
Question 4
Predict other countries or situations that might benefit from this science project.
Other countries facing similar water quality issues, such as those in Sub-Saharan Africa, parts of Southeast Asia, and regions affected by natural disasters, could benefit greatly from Deepika's water purification methods. Areas with high levels of industrial pollution or those experiencing droughts that reduce access to clean water sources are also prime candidates. Additionally, refugee camps or isolated communities without reliable access to sanitation could use this science project to improve their water safety.
Question 5
Deepika stated, “Water isn’t just the universal solvent. Water is a universal human right.” Do you agree? Why or why not?
I agree with Deepika's statement that “water is a universal human right.” Access to clean water is essential for survival, health, and dignity. Water is vital not only for drinking but also for sanitation, agriculture, and economic activities. Denying people access to clean water can lead to severe health issues and perpetuate cycles of poverty and inequality. Thus, ensuring that everyone has access to safe and affordable water is a moral imperative that supports the fundamental rights of all individuals.