UPSC Essentials  brings to you its initiative of subject-wise quizzes. These quizzes are designed to help you revise some of the most important topics from the static part of the syllabus. Attempt today’s subject quiz on  Environment and Geography  to check your progress. Gear up for UPSC Prelims 2026—Practice smarter, revise faster, and succeed with our  Special Quiz Magazine . ( Click Here ) 1. It does not build visible anthills. 2. The species is known for its venomous sting. 3. The Asian needle ant includes worker ants only and does not have queens. (a) Only one (b) Only two (c) All three (d) None Relevance: Invasive species are important for UPSC Prelims from the perspective of biodiversity loss, ecosystem disruption and environmental management. Recent reports on invasive ants and other alien species highlight concerns related to biosecurity, public health and conservation governance.…