4a Work in groups of four. Do the quiz. 1 Which is the world's smallest continent?
2 Which continent has the world's highest mountains?
3 Which continent has the most countries?
4 Which is the planet's longest river?
5 What is the planet's biggest lake?
6 Which is the world's smallest country?
7 Which is the country with the largest population?
8 Which is the world's largest country?​

1. The smallest continent by land area is Australia with 9,008,000 (km2) which represents just 6% of the total land area in the world.

2 Mount Everest, the highest mountain in Asia and the world, stands on the crest of the Great Himalayas of southern Asia that lies on the border between Nepal and the Tibet Autonomous Region of China.

3. The answer is Africa. There are indeed 53 recognised countries, one disputed territory being Western Sahara and one country, Somaliland, that is not recognised.

4.The Nile is credited as the longest river in the world. Its main source is Lake Victoria in east central Africa. From its farthest stream in Burundi, it extends 6,695 km (4,160 miles) in length.

5. Lake Baikal is the world's largest freshwater lake in terms of volume.

6. , Vatican City is the smallest country in the world, measuring just 0.2 square miles, almost 120 times smaller than the island of Manhattan. Situated on the western bank of the Tiber River, Vatican City's 2-mile border is landlocked by Italy.

7.China has the world's largest population (1.42 billion).

8. Largest Countries in the World by Area. map of Russia , which covers more than 17 million square kilometers. Map of Russia.