text: water conservation ke liye kya tumhe pata hai,rainwater harvesting kitni helpful ho sakti hai? agar hum ghar ki roof se paani collect karein, toh humara paani ka kharch bhi kam hoga.bilkul! aur hum garden ke liye bhi yeh paani use kar sakte hain, yeh toh ek stone se do shikar hoga, ek paani bacha, doosra plants ko khush rakha.