Ключевые слова: biodiversity, blade, carbon cycle, ecosystem, emerald, energy flow, environment, field, flora, food chain, fresh, grass, grassland, green, growth, habitat, healthy, lawn, leaf, lush, meadow, nature, nitrogen cycle, outdoors, oxygen cycle, park, phosphorus cycle, plant, plant life, prairie, savanna, spring, steppe, sulfur cycle, summer, tundra, turf, vegetation, verdant, vibrant, water cycle,