Oceans and Continents

Given: We need to define the geographical term 'Continent'.

Answer:
A continent is a very large, continuous expanse of land (landmass) on the Earth's surface. The seven continents of the world are:
1. Asia
2. Africa
3. North America
4. South America
5. Antarctica
6. Europe
7. Australia (Oceania)

Continents are separated from one another by oceans and seas. Asia is the largest continent and Australia is the smallest continent.

Given: We need to define the geographical term 'Ocean'.

Answer:
An ocean is a vast body of salt water that covers a large part of the Earth's surface. Oceans cover about 71% of the Earth's total surface area. The five oceans of the world are:
1. Pacific Ocean (largest)
2. Atlantic Ocean
3. Indian Ocean
4. Southern Ocean
5. Arctic Ocean (smallest)

Oceans support all kinds of marine life and play a critical role in regulating the world's climate.

Given: We need to define the geographical term 'Island'.

Answer:
An island is a landmass that is completely surrounded by water (sea or ocean) on all sides, but is not large enough to be called a continent. Islands can be found in oceans, seas, lakes, or rivers.

Examples:
- Greenland — the largest island on Earth
- Andaman and Nicobar Islands — islands belonging to India
- Sri Lanka — an island nation near India

Islands differ from continents mainly in their size; continents are much larger landmasses.