The correct option is (a).
Explanation
North America is a major landmass located entirely within the Northern Hemisphere and almost wholly within the Western Hemisphere. Its geographical classification is defined by its size relative to other continents and its surrounding water bodies.Statement-wise Analysis:
- Statement 1 is Correct: North America is the third-largest continent in the world by surface area, following Asia and Africa. It covers approximately 24.7 million square kilometers.
- Statement 2 is Incorrect: The continent lies entirely in the Northern Hemisphere. It does not extend into the Southern Hemisphere.
- Statement 3 is Incorrect: North America is not surrounded by only one ocean; it is bordered by three distinct oceans: the Arctic Ocean to the north, the Atlantic Ocean to the east, and the Pacific Ocean to the west.
Key Takeaway: North America is the third-largest continent, situated exclusively in the Northern Hemisphere, and is bounded by the Arctic, Atlantic, and Pacific Oceans.