What factor most explains why the majority of Russians live in the western part of the country?

A. government regulations

B. climate

C. language

D. natural resources

B. climate

Which of the following is the major religion in Russia?

A. Christianity

B. Judaism

C. Buddhism

D. Islam

A. Christianity

Which of the following is a reason why few people live in Siberia?

A. The long distances between cities create isolation.

B. The permafrost makes the construction of roads and buildings difficult.

C. The region has several active volcanoes and frequent earthquakes.

D. Most of the region is off-limits to settlement to protect its natural resources.

All of the options listed are valid reasons why few people live in Siberia. However, for the sake of choosing the most relevant reason, I would select option B. The permafrost in Siberia poses challenges for constructing roads and buildings, making it less suitable for permanent settlement.