Nature

3. Tall landform that rises steeply above its surroundings
5. Deep and narrow gorge with steep sides
6. Event of the sun setting below the horizon
7. Large natural watercourse that flows toward the ocean, sea, lake, or another river
10. Sandy or pebbly shoreline along a body of water
12. Large body of water surrounded by land
13. Event of the sun rising above the horizon
15. Flowing water that drops from a height
16. Grassland or open field with flowers and vegetation

1. Large mass of ice that moves slowly down a mountain
2. Dense and extensive area with a large number of trees
4. Natural underground chamber or passage
8. Opening in the Earth's crust that allows molten rock, ash, and gases to escape
9. Low-lying area between mountains or hills
11. Arid and barren region with little to no vegetation
14. Landmass surrounded by water