1. Passage Reading
2. Verbal Logic
3. Non Verbal Logic
4. Numerical Logic
5. Data Interpretation
6. Reasoning
7. Analytical Ability
8. Quantitative Aptitude
520. (c) it helps living things to exist; Because the paragraph mentions that “no kind of physiological activity is possible in which this fluid does not play an essential part”.
521. (b) water plays very important role in it; Because the paragraph mentions that the water plays an essential part in all the physiological activity.
522. (d) the importance of water in human life; Because the paragraph mentions that “The conservation and utilization of water is thus fundamental to human life”.