How does soil, industries and transport affect population distribution in south east asia?

Which is not part of the definition of a family? two or more related people living together being married or in a partnership a single person living alone choices a and b

Acivilization exists for several hundred yeaars, developing its own language. such a civilization probably has been: a. farming corn b. suffering from a lack of contact with the outside world. c. isolated by mountains or some other physical barriers. d. starving from lack of trade.

What are mountains that divide european russia from asian russia?