Q. Name the highest peak in the Indian Himalayas.

Q. The word ‘Bank’ has been derived from the French word .

Q. What is a petty cash book? Write the advantages of the petty cash book.

Q. Give three pairs of prime numbers whose difference is 2 . [Remark: Two prime numbers whose difference is 2 are called twin primes].

Q. Explain:Can two acute angles be supplementary

Q. Discuss the different modifications of leaves.

Q. What is the ‘Prime Meridian’? What is the other name for it and why?

Q. What is meant by physical capital? Give examples. What are the items coming under it?

Q. Why are microwaves used in radars?

Q. Explain why BF3 behaves as a lewis acid.