encompasses the physical world, life, and processes not made by humans, including landscapes (mountains, rivers), living things (plants, animals), elements (air, water), and natural phenomena, serving as our fundamental source of survival, beauty, and inspiration, though often contrasted with human activity. It's a vast system of interconnected elements, from microscopic patterns in snowflakes to massive ecosystems, all governed by natural laws. 

Key Aspects of Nature:

The Physical World: Mountains, oceans, forests, deserts, weather, geology.

Life Forms: Animals, plants, fungi, bacteria, and all ecosystems.

Natural Processes: Evolution, weather cycles, water cycles, photosynthesis.

Human Connection: Provides resources (food, air, water) and experiences (beauty, wonder), while also being a subject of scientific study and conservation.