Questions

The percentage change of a number when it is first decreased by 10% and then increased by 10% is

Venn diagram was invented 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'.

In spite of(A)/her irritation, she(B)/couldn't help smile.(C)/No error(D)

What is dry ice?

............ element is represented by the given symbol.

Covalent Bond is also called _________.

Pyrolusite is an ore/mineral of ___________.

Which was not produced by volcanic outgassing?