landforms

3. Elongated low-lying areas between hills or mountains, often V-shaped and carved by rivers or glaciers.
5. Large bodies of saltwater, often partially enclosed by land, that are often connected to oceans.
6. Openings in the Earth's crust through which molten rock, ash, and gas erupt.
9. A small, narrow river.
10. High-elevation, steep-sided landforms, often formed by tectonic activity or volcanism.
13. Large, natural streams of water flowing in a channel towards a sea, lake, or another river.
14. Areas of land surrounded by water on three sides.
15. Landforms created at the mouth of a river where sediment is deposited as the river flows into a larger body of water.
17. Large, flat, or gently rolling areas of land.

1. The vast, interconnected bodies of saltwater that cover about 71% of the Earth's surface.
2. Large, flat, elevated areas of land with steep slopes on at least one side.
4. Deep, narrow valleys with steep sides, usually formed by long-term river erosion.
7. Arid regions with sparse vegetation, often featuring sand dunes or rocky landforms.
8. Underground chambers, often formed in soluble rock like limestone.
11. Raised areas of land with rounded tops, smaller and less steep than mountains.
12. Areas of land completely surrounded by water.
16. Large inland bodies of standing freshwater, though some are saltwater.