Final answer:
You can see France when looking over the sea from The White Cliffs of Dover due to the narrowness of the Strait of Dover.
Step-by-step explanation:
When directly looking over the sea from The White Cliffs of Dover, the country you can see is France. These iconic white cliffs are made of chalk which is a type of calcium carbonate, and they were formed from the skeletal remains of coccolithophores, tiny marine organisms that lived in the seas during the Cretaceous period. The visibility of France from the cliffs is due to the narrowness of the Strait of Dover, the narrowest part of the English Channel, which separates southern England from northern France.