Answer: Green-washing
Explanation:
The green washing is basically refers to the misleading information or data about the specific products and the services provided by an organization.
It is the process of providing the false information and creating the negative environment as it encourages the customers for buying the products and the technology for the false materials and products.
According to the question, the various types of companies are are the environmental friendly and they gaining the public approval regarding the sales but they are guilty of the green washing concept.
Therefore, Green-washing is the correct answer.