Which of the following ports is an artificial port ?

In India, the ports are categorized as major and non-major ports. Which one of the following is a non-major port ?

Which of the following (Port-Country) is not correctly matched?

Which one of the following is NOT a pass of Arunachal Pradesh?

Which one of the following is not a part of the Meghalaya Plateau?

Which of the following port is not correctly matched with their country ?