The correct option is Only three
Explanation
The major oceans of the world possess distinct physical configurations and shapes, which are defined by the arrangement of the continental landmasses surrounding them. These shapes are standard geographical descriptions found in physical geography.
Statement-wise Analysis:
- Pair 1 is Correct: The Pacific Ocean is the largest ocean and is described as almost circular in shape. It is surrounded by the continents of Asia and Australia to the west and North and South America to the east.
- Pair 2 is Correct: The Atlantic Ocean is the second-largest ocean and is distinctively 'S' shaped. It is flanked by the Americas on the western side and Europe and Africa on the eastern side.
- Pair 3 is Correct: The Indian Ocean is the only ocean named after a country. Its shape is described as almost triangular, being bounded by Asia in the north, Africa in the west, and Australia in the east.
- Pair 4 is Incorrect: While the Arctic Ocean has an irregular coastline, the specific characteristic of a "highly indented coastline" is the defining feature of the Atlantic Ocean in standard geographical texts. This indentation is significant because it provides ideal locations for natural harbours and ports, contributing to the Atlantic's status as the busiest ocean for commerce. The Arctic Ocean is primarily characterized by its location around the North Pole within the Arctic Circle.
Key Takeaway:
The Pacific Ocean is circular, the Atlantic Ocean is 'S' shaped with a highly indented coastline (favourable for trade), and the Indian Ocean is triangular.