Answer:
Because human activities did not take place in the Poles, but in the Alps.
Step-by-step explanation:
Although the glaciers at the poles are objects of great curiosity attracting thousands of scientists and scholars, it will be very difficult to find artifacts there. This is because these regions did not used to be the place for human activities.
The Alps were a region most used by individuals to establish their activities, leaving objects that prove their existence in the region, even with the adverse climate.