Geography

3. A vast body of saltwater that covers a large part of the Earth's surface. It is home to diverse marine life and ecosystems.
6. A barren area of land where little precipitation occurs and living conditions are harsh for plant and animal life.
8. A large body of water surrounded by land, often freshwater, and not directly connected to the sea.
9. A piece of land almost surrounded by water or projecting out into a body of water. It is connected to the mainland by an isthmus.
10. A large natural elevation of the Earth's surface, often with steep sides and a peak. It is higher and more rugged than a hill.
13. A natural flowing watercourse that moves towards an ocean, sea, lake, or another river. It often supports various ecosystems and human settlements.
15. A flat-topped area of high ground, often situated above the surrounding land. It is typically larger than a plain.

1. A piece of land surrounded by water, often smaller than a continent. It can be inhabited or uninhabited.
2. A deep, narrow valley with steep sides, often carved by a river or the movement of tectonic plates.
4. One of the seven large landmasses on the Earth's surface, often defined by geographical and cultural criteria.
5. A large area of flat land with few trees, often suitable for farming. It is lower in elevation compared to plateaus and mountains.
7. A persistent body of dense ice that moves slowly down a slope or valley, often shaping the landscape over time.
11. A large area covered chiefly with trees and undergrowth, often home to diverse wildlife and vegetation.
12. The study of the Earth's physical features, climate, and human populations. It helps us understand the relationship between people and their environment.
14. A low area of land between hills or mountains, often with a river or stream flowing through it.