Explanations:An island is defined as a piece of land that is surrounded by water on all sides and is not connected to any mainland. This definition is crucial for understanding the geographical features of the Earth. Islands can vary greatly in size, from tiny islets to large landmasses like Australia, which is often referred to as an island continent.
Let's break down the concept of an island further. An island is typically formed by geological processes such as volcanic activity, sedimentation, or the uplifting of the ocean floor. They can be found in oceans, seas, and even in freshwater bodies like lakes. The key characteristic is that they are completely surrounded by water, which isolates them from the mainland.
Now, let's consider the options provided in the question:
Kawaratti: This is a small island located in the Lakshadweep archipelago in India. It is surrounded by water on all sides, fitting the definition of an island perfectly. The island is part of a group of islands that are all surrounded by the Arabian Sea.
Australia: Australia is the world's largest island and is often referred to as an island continent. It is surrounded by water on all sides, with the Indian Ocean to the west, the Southern Ocean to the south, and the Pacific Ocean to the east. Despite its size, it still fits the definition of an island as it is not connected to any mainland.
Dubai: Dubai is a city located on the Arabian Peninsula, which is part of the larger Asian continent. It is not surrounded by water on all sides. While it has a coastline along the Persian Gulf, it is connected to the mainland of the Arabian Peninsula. Therefore, it does not meet the criteria to be classified as an island.
Iceland: Iceland is an island country located in the North Atlantic Ocean. It is surrounded by water on all sides, making it a true island. The country is known for its unique geological features, including volcanoes and glaciers, which are typical of island formations.
In conclusion, the correct answer is Dubai because it is not an island. It is a city on the Arabian Peninsula, which is part of the mainland. Understanding the definition of an island and being able to apply it to different geographical features is essential for correctly identifying islands and non-islands.