Sita lived in a village and could, not afford a refrigerator in her house. She knew how to keep water cold and preserve all perishable items in her house. She kept wet cloth surrounding the earthen pot to keep water cool, she also kept vegetables fresh by keeping them in wet gunny bag and timely sprinkled water over it.<br><b>(a)</b> Why did Sita keep wet cloth surrounding the earthen pot?<br><b>(b)</b> Suggest one more method of keeping the house cool in summer.<br><b>(c)</b> What value of Sita is reflected in the above case?