Nature

2. The vast expanse of saltwater covering most of Earth's surface.
6. A mountain with a vent through which lava, ash, and gases erupt from the Earth's crust.
8. Earth's natural satellite, visible in the night sky and affecting tides.
10. A field of grass and wildflowers, often found in low-lying areas.
11. A large area covered with trees and vegetation, home to diverse wildlife.
13. A large mass of ice slowly moving downhill, shaping the landscape over time.
14. A flowing or falling water stream that descends from a height.

1. A deep, narrow valley with steep cliffs, often carved by a river.
3. A natural underground hollow or passage, often with unique rock formations.
4. A lush and dense forest with high rainfall and biodiversity.
5. A barren and arid region with little or no vegetation, receiving little rainfall.
7. A large body of water surrounded by land, not connected to the ocean.
9. A large landform that rises prominently above its surroundings, with a peak or summit.
12. A star at the center of our solar system, providing light and heat to Earth.
15. A natural flowing watercourse, usually originating from a source and flowing to a larger body of water.