Questions

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'.
I am vexed at him (1)/ for what all he has (2)/ done for him till date. (3)/ No Error (4)

What is the principal focus of a spherical mirror?

In the following question, the sentence given with blank to be filled in with an appropriate word. Select the correct alternative out of the four and indicate it by selecting the appropriate option.

There is a cat ______ the house.

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. Ifa sentence is free from error, select 'No Error'.

The scientific need for simple, stable and internationally (1)/ accepted systems for naming objects of the natural world has been (2)/ generated many formal nomenclatural systems. (3)/ No error (4)

Algae belongs to which of the following levels of the ecosystem?

By which process substance like carbon dioxide or oxygen can move across the cell membrane?

Which of the following is NOT correctly matched?

From the given words, select the word which cannot be formed using the letters of the given word. CIRCUMSTANCES