Answer:
The factor that posed the greatest challenge to developing natural resources in Siberia was the regional climate.
Step-by-step explanation:
- Siberia forms a part of Russia that also comprises most of northern Asia.
- The climate in this region is governed by harsh and long winters and mild summers.
- This type of climate results in making most natural resources vulnerable to permafrost and hinder their development.
- It is due to this Tundra type of climate in the region that it also lacks vegetation and thus, very less biodiversity.