Bargaining always comprises give and take of any thing, commodity or article.

The meaning of blameless is to free from blame. Hence, in blameless, there should always be blame.

No factory can run without labour.

It is not necessary that a husband must be taller and more handsome, bigger, more intelligent than his wife.

No college can run without a teacher.

Danger always comprises fear because of insecurity.

For every singing , there should be some words.

A camera must have lens.

NA

Clearly, though all the alternatives may form a part of the atmosphere, the air is the most vital part, without which there can be no atmosphere.