Is communication related to success in business?

Effective communication is the key to success in business.

Communication & contacts are key factors of a business man to improve his earnings & relations

Without proper communication there cannot be success in any business.
Barriers like language or not paying attention to the instructions being given concerning work leads to decline in business.
Customers at times also need to be listened to patiently especially the first timers who ask all kinds of questions about products' quality and prices.
Therefore communication is key to success

Yes, communication is a very important function of business as well as in life.

as the humans cant live without water, the business cant growth without communication. 

Effective communication is the basis for the success of organizations In terms of the flow of information in a timely manner and appropriate channels of communication and quality of information

Of course! Without communication, there should be no business in our surroundings.
Communication is effectively used throughout all business matters.
It plays an important role in success of business.
You need communication in business to convey a message through various channels of communication including the internet, print, radio, television, outdoor, and word of mouth.
With all of these functions; - it helps a business increases productivity - better understanding how to get your message across - enhances relationships with seniors and sub ordinates, managements and employers, and customers and sellers - building a reputation among customers - to increase sales - for the promotion of a product, services and organization - b2b deals