Asia
Explanation
The distribution of Earth's landmass is uneven, with the Northern Hemisphere containing approximately 68% of the total land area. The relative size and latitudinal position of continents determine their contribution to this landmass.Analysis of Options:
- Africa: Africa is the second-largest continent globally. However, it is uniquely positioned across the Equator, meaning its landmass is distributed between both the Northern and Southern Hemispheres. Consequently, its contribution to the Northern Hemisphere's landmass is less than that of Asia.
- North America North America: North America lies entirely within the Northern Hemisphere. While it is the third-largest continent, its total area (approximately 24.7 million km²) is significantly smaller than that of Asia.
- Asia: Asia is the largest continent on Earth, covering approximately 44.5 million km². It is located primarily in the Northern and Eastern Hemispheres. With the exception of some islands in the Indonesian archipelago, the vast majority of the Asian continent lies north of the Equator, making it the largest contributor to the landmass of the Northern Hemisphere.
- Europe: Europe lies entirely within the Northern Hemisphere. However, it is the second-smallest continent by surface area (approximately 10.2 million km²), covering a much smaller area than Asia, North America, or the northern portion of Africa.
Key Takeaway: Asia is the world's largest continent by surface area, and since it is situated almost entirely north of the Equator, it constitutes the largest portion of land in the Northern Hemisphere.