text: sun,kya tumhe pata hai, agar hum water filter ka istemal karein toh paani ko purify kar sakte hain aur plastic bottles ka istemal bhi band kar sakte hain?achha hai, lekin kya hum energy-efficient bulbs ka istemal bhi nahi kar sakte? yeh sirf bijli bachaate hain, balki humare bill bhi kam karte hain, na?