It means you need something.
what is necessity of commutator in DC generator
who ever wrote this is STUPID
A statement of necessity is a formal declaration or justification for why a particular action or decision is required or unavoidable. It is used to explain the essential reasons behind a choice or course of action.
The necessity of political parties include; 1. They bring various representatives together so that a responsible government could be formed. 2. They support or restrain the government in the formulation of policies.
The possessive form of the noun necessity is necessity's.
The plural of necessity is necessities.
Twitter is not a necessity.
You will never be able to figure out how to conduct your research if you do not have a well defined research problem, stating what it is that you want to find out, and why that subject is of interest.
necessity
necessity
Necessity.
necessity