From a economic perspective, it is important to promote tourism and market destination, therefore zoo procurement is essential for a country to develop its tourism.
Your ideas sometimes don't flow well. Avoid writing very lengthy sentences.
urthermore, preservation of the natural environment is essential for maintaining community sustainability, and thus zoo is one of the approaches.
.... Well, zoo is not a natural environment, but man made..
Modern zoos actively work to encourage conservation ethics while giving visitors an enjoyable and exciting experience.
.... may be they encourage wild life conservation, but you cannot claim that zoo is a natural environment that animals are not caged and allowed to move around easily.