Answer:
25 million Km
Step-by-step explanation:
Latitude is angle which ranges between 0 degree to 90 degrees. The latitude of North pole is 90 degrees. The land in the belt between 60 to 65 degrees north latitude is about 25 million kilometres. The total land on earth is 510.1 million km square out of which 33% is dessert and 24% of mountains. The habitable land excludes mountains and desserts. The extensive land usage has effects on earth environment.