Islands & Archipelagos Quiz

Question 1

What is the world's largest island (excluding continents)?

Accepted Answer

Greenland

Answer

Iceland

Answer

Borneo

Answer

New Guinea

Question 2

What is an 'archipelago'?

Accepted Answer

A chain or group of islands

Answer

A very large island over 10,000 km²

Answer

The deepest part of an ocean near volcanic islands

Answer

An island formed entirely from coral reefs

Question 3

Which country has the most islands in the world?

Accepted Answer

Sweden

Answer

Indonesia

Answer

Philippines

Answer

Norway

Question 4

The Maldives is famous for being the world's lowest-lying country. What is its average elevation?

Accepted Answer

About 1.5 metres above sea level

Answer

About 5 metres above sea level

Answer

About 10 metres above sea level

Answer

About 0.5 metres above sea level

Question 5

Iceland sits on the Mid-Atlantic Ridge. What does this mean geologically?

Accepted Answer

It sits where two tectonic plates (Eurasian and North American) are pulling apart — Iceland is literally being split in two and growing wider

Answer

It is slowly moving toward Europe

Answer

It is the result of a meteor impact that pushed the seabed above water

Answer

It is a coral atoll that formed over millions of years on a submerged plateau

Question 6

Which is the world's most populous island?

Accepted Answer

Java (Indonesia)

Answer

Honshu (Japan)

Answer

Great Britain

Answer

Sumatra (Indonesia)

Question 7

What is an 'atoll' and in which ocean are most atolls found?

Accepted Answer

A ring-shaped coral island or reef enclosing a lagoon — most found in the Pacific and Indian Oceans

Answer

A volcanic island with a central peak — most found in the Pacific

Answer

An island that has sunk below sea level — most found in the Indian Ocean

Answer

A continental shelf island separated from the mainland — most found in the Atlantic

Question 8

Which island was the subject of a 1982 war between Argentina and the United Kingdom?

Accepted Answer

The Falkland Islands

Answer

South Georgia Island

Answer

Ascension Island

Answer

Tristan da Cunha

Question 9

The Canary Islands are Spanish territory but geographically located near which continent?

Accepted Answer

Africa

Answer

Europe

Answer

South America

Answer

They are equidistant between Europe and Africa

Question 10

The island of Borneo is shared by which three countries?

Accepted Answer

Indonesia, Malaysia, and Brunei

Answer

Indonesia, Philippines, and Malaysia

Answer

Malaysia, Singapore, and Indonesia

Answer

Philippines, Malaysia, and East Timor

Question 11

What makes the island of Madagascar biologically remarkable?

Accepted Answer

It has been isolated from other landmasses for about 88 million years — approximately 90% of its wildlife is found nowhere else on Earth

Answer

It has the highest number of venomous species of any island

Answer

It is the world's oldest island, formed over 300 million years ago

Answer

It has no native predatory mammals due to its island isolation

Question 12

Which is the world's smallest island nation?

Accepted Answer

Nauru

Answer

Tuvalu

Answer

San Marino

Answer

Vatican City

Question 13

The Galápagos Islands belong to Ecuador. What makes their geographical position unusual?

Accepted Answer

They sit on the equator but experience cool temperatures due to the Humboldt Current — creating unique conditions for evolution

Answer

They are the only islands straddling the Prime Meridian

Answer

They are the most remote inhabited islands in the world from any continental landmass

Answer

They formed entirely from coral rather than volcanic activity unlike all other Pacific islands

Question 14

What is the difference between a 'continental island' and an 'oceanic island'?

Accepted Answer

Continental islands sit on a continental shelf and were once connected to a continent; oceanic islands rose from the ocean floor through volcanic activity and were never part of a continent

Answer

Continental islands are always bigger than oceanic islands

Answer

Oceanic islands are further from shore than continental islands

Answer

Continental islands are permanently inhabited; oceanic islands are not

Question 15

Hawaii is a US state but not geographically part of North America. What is its geological origin?

Accepted Answer

It formed over a volcanic hotspot — a fixed point of intense volcanic activity under the Pacific Plate — creating a chain of progressively older islands as the plate moved northwest

Answer

It is a fragment of a continental shelf that broke off from North America millions of years ago

Answer

It formed from the collision of two oceanic plates creating a subduction zone volcano

Answer

It is a coral atoll that grew above sea level over millions of years

Question 16

What is the 'Ring of Fire' and how does it relate to islands?

Accepted Answer

A horseshoe-shaped zone around the Pacific Ocean where 90% of the world's earthquakes occur and most of the world's volcanic islands are found

Answer

A series of active submarine volcanoes in the Pacific Ocean creating future islands

Answer

The trade wind pattern around the Pacific that was used by Polynesian navigators

Answer

A geological survey of islands with active volcanoes in the Pacific basin

Question 17

Tristan da Cunha in the South Atlantic holds which remarkable record?

Accepted Answer

The most remote permanently inhabited island in the world — 2,787 km from the nearest inhabited land (Saint Helena)

Answer

The world's highest island above sea level

Answer

The island with the longest coastline relative to its area

Answer

The only island with a permanent underground city as its main settlement

Question 18

Sri Lanka is a large island south of India. Which body of water separates it from India?

Accepted Answer

The Gulf of Mannar and Palk Strait

Answer

The Laccadive Sea

Answer

The Arabian Sea

Answer

The Bay of Bengal

Question 19

The British Isles consist of how many main islands and which are they?

Accepted Answer

Two main islands (Great Britain and Ireland) plus thousands of smaller ones

Answer

Two — Great Britain and Ireland

Answer

Three — Great Britain, Ireland, and the Isle of Man

Answer

Four — England, Scotland, Wales, and Northern Ireland

Question 20

Which ocean contains the most island nations?

Accepted Answer

The Pacific Ocean

Answer

The Atlantic Ocean

Answer

The Indian Ocean

Answer

The Arctic Ocean