This question is incomplete. Here's the complete question.
Based on the 1925 serum run to Nome
Describe what made the terrain around Nome perilous? How did this contribute to the heroism of the dog teams?
Answer:
Located in the Alaskan tundra, the route to Nome crossed a 5000-foot mountain peak and the unstable ice of Norton Sound, ill-famed for breaking under pressure. Furthermore, the sea was frozen for seven months during the winter, meaning that dog sleds were the only way of transportation at the time. In addition to that, the “Great Race of Mercy” happened in the middle of a great storm.
Explanation:
All of these elements made the five days journey to get the serum required to save Nome (which should have taken a month) that much more heroic.
Answer:
Check for spelling and punctuatoin errors.
Explanation:
Everything else is unnecessary .
I would choose 4 as it is the only answer without an opinion; it is based on what someone saw, which bey definition is an observation.
The second one. To protects them from hearing the deadly song of the sirens
