Context: Roughly 70% of the area in the RSFSR consisted of broad plains, with mountainous tundra regions mainly concentrated in the east. The area is rich in mineral resources, including petroleum, natural gas, and iron ore.

Question: What percentage of the RSFSR was made up of plains?
Answer: 70%

Question: In what part of the RSFSR did tundra mainly exist?
Answer: the east

Question: Along with petroleum and iron ore, what resource was abundant in the RSFSR?
Answer: natural gas

Question: What percentage of the RSFSR wasn't made up of plains?
Answer: Unanswerable

Question: In what part of the RSFSR did tundra mainly not exist?
Answer: Unanswerable

Question: Along with petroleum and iron ore, what resource was depleted in the RSFSR?
Answer: Unanswerable

Question: What scarce resources are there?
Answer: Unanswerable

Question: Where are the desert regions mainly concentrated?
Answer: Unanswerable