Why there is low density of population in siberia​

Ais a survey that focuses on only a small portion of the population, and the results are generalized for the larger population.

Which environment would most likely not contain fossils? a a thick deposit of cracked, dried mud b sediment deposited in a sandy river bed c intrusive rock formed from cooled magma d layers of sand accumulated for a century

Wich of the following is not likely to appear on a map