Answer: They generate revenue and cover most of the cost of the newspaper staying in business.
Explanation:
Nowadays, majority of the newspapers include advertisements in their editions, together with their regular content. These advertisements are often referred to as ads. This is a modern way for the companies to promote their services and products, often targeting the larger budget clients. For the newspapers, this is a way to increase their income - the ads actually enable them to continue with their business. Therefore, these advertisements are profitable for both the newspapers and their clients.