6типов вопросительных предложений к предложению: canada is the second largest country in the world.

1 is Canada the second largest country in the world?
2 Canada is  the second largest country in the world, isn't it?
3  Canada isn't  the second largest country in the world, is it?
4 Is Canada or Russia  the second largest country in the world?
5 Why is Canada the second largest country in the world?
6 What country is the second largest   in the world?

1)Is Canada the second largest country in the world?

2)What country is the second largest in the world?

3)What number largest country  is Canada in the world?

4)Is Canada big or small country in the world?

5)Where Canada is the second largest country?

6)Is Canada largest country in the world?