This document discusses flora and fauna. It defines flora as plant life in a region and fauna as animal life. It explains that humans and all organisms depend on plants, as plants provide food, oxygen, soil enrichment, and prevent erosion. Animals play a key role in balancing ecology by consuming plants and displaying behaviors unlike plants. The document then focuses on the flora and fauna of India, describing its rich diversity of over 16,000 flowering plants and 45,000 total species, as well as its variety of large mammals. It notes that while protected areas help preserve wildlife, encroachment threatens it, with causes of depletion including colonial activities, shifting agriculture, poaching, and development.