Geography

Lake Ladoga is the largest lake by area in Europe, with an approximate surface area of about 17,700 to 17,891 km² according to authoritative sources such as Wikipedia and Britannica. The commonly accepted figure is around 17,700 km², which corresponds to option A. Therefore, the correct answer is A.

Ema is a well-known dormant volcano located in Vanuatu. Dormant volcanoes are those that are not currently erupting but may erupt again in the future, distinguishing them from active or extinct volcanoes.

Volcanoes commonly occur at both convergent and divergent tectonic plate boundaries due to magma generation from subduction or seafloor spreading processes. Therefore, both A and B are correct, making option C the best choice.

Africa and South America have coastlines that fit together like pieces of a puzzle, often described as mirror images, which supports the theory of continental drift.

The Sargasso Sea is unique among seas because it is defined by ocean currents rather than land boundaries, meaning it has no coastline. The other seas listed all have coastlines along various countries.

The equator passes through Kenya, Uganda, and Tanzania, but not through Zaire (now the Democratic Republic of the Congo). Therefore, option A is correct as the country through which the equator does not pass.

Five US states border the Gulf of Mexico: Texas, Louisiana, Mississippi, Alabama, and Florida. This is a well-known geographical fact.

The largest island in the Indian Ocean is Madagascar, not Borneo. Madagascar has an area of about 591,896 square kilometers (228,531 square miles), making it the fourth largest island in the world after Greenland, New Guinea, and Borneo. Borneo is located in the Malay Archipelago and borders the Pacific Ocean, not the Indian Ocean. Therefore, the correct answer is B (Madagascar).

The Suez Canal is a crucial maritime route connecting the Mediterranean Sea to the Red Sea, facilitating direct shipping between Europe (developed countries) and Asia/Africa (developing countries). This makes it an important link between developed and developing nations.

Ross Island is located in the Ross Sea near the continent of Antarctica, making option C the correct answer. It is not near Greenland, Norway, or Australia.