Education as Social Reconstruction

10वी कक्षा (10th Standard)

Revolution for cleaner environment – 2

(1) स्थायी या शाश्वत उपयोग क्या है ? What is sustainable utilization/usage ? Ans: (Source: [World from above HD] https://www.youtube.com/watch?v=fKWQuU0sHPw) https://www.youtube.com/watch?v=gTamnlXbgqc शास्वत उपयोग: हमारे…