The correct option is (b).
Explanation
North America is one of the seven continents of the world, characterized by its specific geographical location relative to the equator and the prime meridian, as well as its land connections to other continents.
Statement-wise Analysis:
- Statement 1 is Incorrect. North America is the third largest continent in the world. The largest continent is Asia, followed by Africa.
- Statement 2 is Correct. North America is linked to South America by a narrow strip of land known as the Isthmus of Panama. This land bridge separates the Atlantic Ocean from the Pacific Ocean.
- Statement 3 is Incorrect. The continent lies completely in the Northern Hemisphere and entirely within the Western Hemisphere. No part of the continent extends into the Southern Hemisphere.
Key Takeaway:
North America is the third-largest continent, situated entirely in the Northern and Western Hemispheres, and is connected to South America via the Isthmus of Panama.