22. answer the following questions: 1. where is the usa situated? 2. what land area does it cover? 3. how large is the population of the usa? 4. why is the climate of the usa so diverse? 5. what countries does the usa border on? 6. what seas and oceans is it washed by? 7. what are the most important rivers in the usa? 8. where are the great lakes situated? 9. the usa is rich in natural resources, isn’t it? 10. when did the present-day american history begin? 11. what was the purpose of the war between the north and the south? 12. why is the usa called the leading world power? 13. how many states are there in the usa? 14. what is the capital of the usa? 15. who is the president of the usa?