Questions

Biogas is produced from biomass by

In the following question, some part of the sentence may have errors. Find out which part of the sentence has an error and select the appropriate option. If a sentence is free from error, select ‘No Error’.

When the business is ran smoothly (1)/ directors are more than happy to pick an experienced insider, (2)/ who will continue along the present path. (3)/ No error (4)

Improve the bracketed part of the sentence.
The communities of ants are sometimes very large, (numbered) even upto 500 individuals: and it is a lesson to us that no one has ever yet seen quarrel between
any two ants belonging to the same community.

In the following question, a sentence has been given in Active/Passive voice. Out of the four alternatives suggested, select the one which best
expresses the same sentence in Passive/Active voice.
I have kept all your old letters.

The oldest oil field in Asia is located in

The tallest peak of which of the following mountain ranges is a mountain called 'Guru Shikhar'?

In which of the following tissues are the cells living, elongated and irregularly thickened at the corners?

___ has naked seeds.