Deserts are A) dry with little organic matter. Although it seems that D might be correct in fact it is not because desert soil is not totally unable to support plant life because in fact some plants grow in the desert and especially following a rain storm the desert can bloom with plant life.
Answer of this question is <span>volcanic eruptions</span>
The Volga river is the largest river in Europe, so that should be the answer.
Natural resources made people be able to live their life and it all had to do with their geography
