What Do You Know About Island?

An island is a piece of land that is surrounded by water. It is not necessarily waterlogged or high, and it may or may not be filled with water. The key characteristic of an island is that it is a landmass that is separate from the mainland and is surrounded by water. Therefore, option B accurately defines what an island is.

Islets are small islands that are formed on top of coral reefs or atolls. Atolls are circular or horseshoe-shaped coral reefs that surround a lagoon. As the coral reef grows and reaches the surface of the water, it forms emergent land features known as islets. These islets are often covered in vegetation and can provide habitats for various plant and animal species. Therefore, option A is the correct answer as it accurately describes the formation and characteristics of islets on atolls.

Greenland is the largest island in the world. It is located in the North Atlantic Ocean and is part of the Kingdom of Denmark. With an area of approximately 2,166,086 square kilometers, it is larger than any other island on Earth. Greenland is known for its vast ice sheet, stunning glaciers, and unique wildlife. It has a population of around 56,000 people, mainly inhabiting the coastal areas.

Artificial islands are not formed by natural processes such as rainfall or excess sunshine. Instead, they are created by human intervention, typically through the process of land reclamation. This involves dredging and depositing large amounts of sand or soil to create new land in bodies of water. Tectonic forces or volcanic eruptions, on the other hand, are natural geological processes that can create islands, but these are considered natural islands rather than artificial ones.

An archipelago refers to a grouping of geographically or geologically related islands. This term is commonly used to describe a cluster of islands that are located close to each other and share similar characteristics. Examples of famous archipelagos include the Maldives, the Philippines, and the Galapagos Islands. The other options, islets, skerries, and cays, refer to specific types of islands or small land masses, but do not encompass the concept of a group or cluster of islands.

It is possible to build an artificial island with natural materials. This can be achieved by using various techniques such as land reclamation, where land is created by filling an area with soil or other materials. These materials can be sourced from nearby areas or even from the seabed. By using natural materials and engineering methods, it is indeed feasible to construct an artificial island.

Continental is not a type of island. A continent refers to a large landmass that is surrounded by water, while an island is a smaller landmass that is also surrounded by water but is completely separate from any continents. Therefore, the correct answer is B. No.

Islets are small islands. Therefore, they can be considered a type of island. The correct answer should be "Yes" instead of "No".

The Island in Osaka Bay, off the Japanese island of Honshu is an example of an artificial island. This means that it was created by human intervention rather than being formed naturally. Artificial islands are typically constructed by dredging and reclamation methods, where land is created by depositing soil, sand, or other materials onto a shallow water area. In the case of the Island in Osaka Bay, it was specifically built to serve as a location for industrial and commercial development.

There are two types of islands. One type is continental islands, which are formed by the shifting of tectonic plates and are usually found near the edges of continents. The other type is oceanic islands, which are formed by volcanic activity and are located in the middle of the ocean. Continental islands are larger and more common, while oceanic islands are smaller and less frequent.