21. When will a hot body radiate maximum energy?
If its surface is black and rough
22. What is the respect for the National Flag and National Anthem?
Fundamental Duty of every citizen
23. Who is the inventor of Poliomyelitis (vaccine)?
Jonas Salk
24. Which was the famous socio-political institution of the Sangham Kerala?
Manram
25. Who is the author of "What Went Wrong?
Kiran Bedi
26. Christianity was spread to Kerala by ?
St. Thomas Aposthel in 52AD (Crangannore)
27. Which part of the pitcher plant becomes modified’ into a pitcher?
Leaf
28. Who, was the Nanda ruler at the time of Alexander's invasion?
Dhana Nanda
29. Who is the author of “Kadambari”?
Bana Bhatt
30. By when is extinction of a species in a food chain compensated?
Food web