A. Our Land, Our Future
B. Time for nature
C. Ecosystem Restoration
D. Air pollution
🧠 Explanation:
The theme of World Environment Day 2021 was Ecosystem Restoration. Knowing this helps students and environmental enthusiasts understand global eco-initiatives. This theme is key for studying environmental science or social studies in school. Learning this helps with projects or exploring sustainability. It’s useful for science classes, making it relevant for understanding eco-efforts. Knowing this theme helps students grasp its importance, ensuring better comprehension for academic work or general knowledge about environmental campaigns.
