Geography

Lake Saint Lucia is located in South Africa. It is a well-known estuarine system on the east coast of South Africa, making option B the correct answer.

Mount Kilimanjaro is the highest point in Africa, and the lowest point on the continent is Lake Assal in Djibouti, which lies below sea level. Therefore, option A is correct.

Ukraine shares its borders with four European Union member states: Poland, Slovakia, Hungary, and Romania. All four countries are EU members and have land borders with Ukraine. Therefore, the correct answer is four (option C). The original explanation incorrectly excluded Romania, but Romania is indeed an EU member state bordering Ukraine.

The Barents Sea is located along the northern coasts of Russia and Norway, making option B correct. Ukraine and Belarus do not border the Barents Sea, so options A and C are incorrect, and option D is unnecessary.

The Sea of Azov lies between Russia and Ukraine, serving as a northern extension of the Black Sea. The other seas listed are located in different regions and do not lie between these two countries.

The Iguazu Falls are located on the border between Brazil and Argentina, making option B the correct answer. The other countries listed do not share the location of Iguazu Falls.

The Formosa Strait, also known as the Taiwan Strait, separates mainland China from the island of Taiwan. This is a well-known geographical fact.

Although Mount Everest is the highest mountain above sea level, Mount Chimborazo's peak is farther from the Earth's center because it is located near the equator, where the Earth's radius is greatest due to its equatorial bulge.

The Island of Ellesmere is part of the Canadian Arctic Archipelago, located in the territory of Nunavut, Canada. Therefore, the correct country is Canada.

The Strait of Gibraltar separates the Iberian Peninsula from Morocco in North Africa. It is the narrow waterway connecting the Atlantic Ocean to the Mediterranean Sea.