Yemen shares a political boundary with _______________.

Nairobi is in _____________.

Malaria is caused by _____________________________.

In which country has life expectancy declined in recent decades?

Which of these regions has the lowest life expectancy?

Which of these Andean countries has a life expectancy of 80–87 years?

Which of these countries is in the same child mortality category as India?

Which of these countries is in Central America?

Which of these countries is in the developed world?