Geography

3. has the oldest continental crust
4. large sea that borders southern Europe, North Africa, and the Middle East.
6. one of Earth's seven main divisions of land.
9. the largest coral reef system in the world, is located off the coast of Australia.
11. a major mountain range, cross through several European countries.
14. Spanish is the main language in all the countries of this continent, except one which its main language is Portuguese
16. the longest river in the world, flows through Africa.
17. second largest continent
18. The largest continent
19. the Romans named this continent
20. There are only three countries in this continent

1. polar desert; holds most of the world's ice
2. The highest mountain of the world
5. a major mountain range, stretch through western North America.
7. the largest river by discharge volume, flows through the Amazon Rainforest in South America.
8. Second smallest continent
10. a region known for its rugged landscape, is located in the southern part of South America (Argentina).
12. the coldest country in which no people live in
13. a deep canyon carved by the Colorado River, is located in the United States within North America.
15. the largest hot desert on Earth, is located in Africa.