3 × | top revision tips | 2 × | work energy and power jee | 2 × | air pollution | ||
3 × | log | 2 × | literature reader | 2 × | water-cycle | ||
3 × | equations | 2 × | squares and perfect squares | 2 × | honey production | ||
3 × | physical and chemical change. | 2 × | cbse-2017 | 2 × | cattle farming | ||
3 × | power | 2 × | storms and cyclone | 2 × | crop production | ||
3 × | space | 2 × | tribals dikus | 2 × | oil yielding plant | ||
3 × | engineering | 2 × | satffing | 2 × | ozone hole | ||
3 × | general | 2 × | chemical equilibrium | 2 × | smog | ||
2 × | coordination compounds & organometallics | 2 × | s- block elements | 2 × | carbon dioxide | ||
2 × | description of motion in 2 and 3 dimensions | 2 × | jee advanced 2018 | 2 × | domestic waste |