Ans: : Blue-green algae
2. Which post does the Constitution of India not mention?
Ans: : The Deputy Prime Minister
3. When do all the magnetic materials lose their magnetic properties?
Ans: : Strongly heated
4. Why are the Canals in Western Europeare mainly used?
Ans: : For inland navigation
5. By whom was the ‘Tahglq-i-Hind', a famous literary work, written?
Ans: : Alberuni
6. Which day is observed as the World Environment Day?
Ans: : 5th June
7. In which Indian state is the game of Polo said to have originated?
Ans: : Manipur
8. Which organs are morphologically different but perform the same function?
Ans: : Analogous organs
9. Which is not a landform which results due to rejuvenation of a river?
Ans: : Oxbow lake
10. Which Bhakti saint wrote the commentary on Vedanta sutras in Sanskrit?
Ans: : Vallabhacharya
11. How can a major portion of the Constitution be amended?
Ans: : By two-thirds majority
12. In which type of coal percentage of carbon is the highest?
Ans: : Anthracite
13. By whom was the first attempt to initiate economic planning in India made?
Ans: : By M. Visvesvaraya
14. In which ocean is Diamantina Trench situated?
Ans: : Indian Ocean
15. Form where did Babar come to India originally?
Ans: : Ferghana
16. Which beach is visited by Olive Ridley turtles annually for mass nesting?
Ans: : Gahirmatha
17. Why is the water of Holy Ganges river is pure?
Ans: : Due to presence of Bacteriophages
18. How the Constitution describes India?
Ans: : As a Union of States
19. The Himalayan mountain system belongs to which mountains?
Ans: : Fold mountains
20. During the reign of emperor was the artillery most perfect and numerous?
Ans: : Aurangzeb
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