Answer for question 1 - The Amazon
Answer for question 2 - Russia
Answer for question 3 - Venezuela
Answer for question 4 - Algeria
Answer for question 5 - Lake Baikal
Answer for question 6 - Grenada
Answer for question 7 - Italy
Answer for question 8 - Kiwi
Answer for question 9 - Thailand
Answer for question 10 - Brazil