Final answer:
Russians have notable concerns about health care and environmental challenges due to pollution, and political tensions, especially in areas like the Caucasus.
Step-by-step explanation:
Based on the given information, it is apparent that Russians have major concerns about health care, environmental issues, and the political situation in regions such as the Caucasus. Significant environmental damage due to the exploitation of natural resources and the rise in automobile use since 1991 has led to severe air and water pollution. Moreover, the contentious Caucasus Mountain region, particularly Chechnya, highlights ongoing ethnic and religious tensions, as well as a desire for independence from Russia, which all contribute to the social and political problems faced by the country.