1. Sledges are capable of transporting heavy loads over long distances in areas with deep snow.
2. They can be pulled by humans, animals, or vehicles.
3. Sledges can be moved over crevasses and other difficult terrain.
4. Sledges can be used to carry people, equipment, and supplies.
5. Sledges are reliable and easy to use, even in extreme weather conditions.
6. Sledges can be used to establish supply routes and depots.
7. Sledges can be used for exploration and scientific research.
8. Sledges are a traditional form of transport in Antarctica and have been used for centuries by explorers and scientists.
In summary, sledges are used in Antarctica due to their versatility, reliability, and ability to transport heavy loads in difficult terrain conditions.