The snow line on the northern side of greater Himalayas range about

The correct answer is: B. 5,500 to 6,000 metres

The snow line is the boundary between the permanently snow-covered areas of a mountain range and the areas where snow melts in the summer. The snow line varies depending on latitude, altitude, and exposure to the sun. In the Himalayas, the snow line is typically between 5,500 and 6,000 meters.

Option A is incorrect because the snow line is typically higher than 4,500 meters in the Himalayas. Option C is incorrect because the snow line is typically lower than 3,500 meters in the Himalayas. Option D is incorrect because there is no option that is correct.