The term 'environment-friendly' is used to describe something that is beneficial to the environment. It can be broken down into two words: 'GREEN' (5 letters) and 'eco' (3 letters). GREEN is often associated with environmentalism and sustainability, while eco is short for ecology, which is the study of the relationship between organisms and their environment. Together, these two words form the term 'environment-friendly, ' which is used to describe products, services, and practices that are designed to minimize negative impacts on the environment.